In this task, you're given a question, along with three passages, 1, 2, and 3. Your job is to determine which passage can be used to answer the question by searching for further information using terms from the passage. Indicate your choice as 1, 2, or 3.

Question: Which of Tzonis' teachers at Yale had the longest tenure at the university? Passage 1:His grandfather was architect Alexandros Tzonis who designed many buildings in Thessaloniki during the Interwar period. Tzonis studied architecture at the National Technical University of Athens (1956 -1961). During the period of his university studies, he was instructed privately in mathematics (Pandelis Rokos) and art (Spyros Papaloukas) meeting regularly with the architect Dimitris Pikionis who was by then retired from teaching. He worked professionally as a stage designer in the theatre and art director in the cinema. (Never on Sunday, 1960 directed by Jules Dassin). In 1961 he moved to the United States as a Ford Fellow, where he pursued his studies at Yale University, briefly in the Drama School and soon after in the School of Art and Architecture under Paul Rudolph, Shadrach Woods, Robert Venturi, and Serge Chermayeff. In 1965, with sponsorship from the Twentieth Century Fund he was appointed fellow at Yale where he carried out pioneering research on Planning and Design Methodology in collaboration with Chermayeff with whom he co-authored The Shape of Community (1972). In 1968 he was invited to teach at the Graduate School of Design at Harvard University by Jerzy Soltan and Josep Lluis Sert appointed assistant professor. There he taught and did advanced research in analytical design methods in association with Walter Isard and Ovadia Salama, receiving outside advice from Anatol Rapaport and Seymour Papert. In collaboration with Ovadia Salama, introducing the newly developed method ELECTRE he worked out a new method for multi-criteria evaluation of architectural projects (1975). In collaboration with Michael Freeman, Etienne de Cointet, and his undergraduate student Robert Berwick, who became later professor of computational linguistics at MIT, he developed a method for design discourse analysis applied to the case of 17th and 18th century texts of French architectural theory, a project funded by the French Government carried out at Harvard and in France (1975).
 Passage 2:In 1870, Charles F. Dowd proposed four time zones based on the meridian through Washington, DC for North American railroads. In 1872. he revised his proposal to base it on the Greenwich meridian. Sandford Fleming, a Scottish-born engineer operating in Canada, proposed worldwide Standard Time at a meeting of the Royal Canadian Institute on February 8, 1879. Cleveland Abbe advocated standard time to better coordinate international weather observations and resultant weather forecasts, which had been coordinated using local solar time. In 1879 he recommended four time zones across the contiguous United States, based upon Greenwich Mean Time. The General Time Convention (renamed the American Railway Association in 1891), an organization of US railroads charged with coordinating schedules and operating standards, became increasingly concerned that if the US government adopted a standard time scheme it would be disadvantageous to its member railroads. William F. Allen, the Convention secretary, argued that North American railroads should adopt a five-zone standard, similar to the one in use today, to avoid government action. On October 11, 1883, the heads of the major railroads met in Chicago at the Grand Pacific Hotel and agreed to adopt Allen's proposed system.
 Passage 3:Byrnes was selected in the 8th round of the 1998 Major League Baseball Draft by the Oakland Athletics. In the 1998 season, Byrnes played for the short-season Southern Oregon Timberjacks, and the Class-A Advanced Visalia Oaks in the A's organization where he batted a combined .357 with 19 doubles, 4 triples, 11 home runs, 52 RBIs, and 17 stolen bases. In 1999, Byrnes continued to play in the A's minor leagues. That season, he played for the Class-A Advanced Modesto A's, and the Double-A Midland RockHounds and in 139 combined games, Byrnes batted .306 with 42 doubles, 1 triple, 7 home runs, 88 RBIs, and 34 stolen bases. Byrnes made his major league debut on August 22, , against the Cleveland Indians. He went 2-for-4 with a stolen base in his first games, playing designated hitter and batting seventh in the batting order. Byrnes batted .300 his first season, with three hits in ten at-bats. The next season, , Byrnes played 19 games with the A's. He hit his first home run of his major league career on June 9, 2001, against the San Francisco Giants. He batted .237 with one double, three home runs, five RBIs, and one stolen base with the A's in 2001. Byrnes played two games in the 2001 American League Division Series against the New York Yankees going hitless in two at-bats.
1