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.
Q: Question: What is the current population of the county that New Mexico State Road 4 is the main highway through? Passage 1:The fire originated as a controlled burn that was part of the 10-year Bandelier National Monument plan for reducing fire hazard within the monument. The starting point was high on Cerro Grande, a 10,200-foot (3110-m) summit on the rim of the Valles Caldera not far north of New Mexico State Road 4, the main highway through Los Alamos County. Like many mountains in the Jemez, Cerro Grande was mainly covered with coniferous forest, composed largely of Ponderosa pine, Douglas fir, white fir, and aspen trees, with a characteristic rincon (meadow) on its southern slopes near the summit. This grassy area also represented the headwaters of Frijoles Creek (Rito de los Frijoles), which flows southeast into Frijoles Canyon and on to the Rio Grande, passing en route the main tourist areas at Bandelier. The plan for the burn (see the NPS summary below) called for initial ignition ("phase 1") to be in the rincon, followed by flanking fires ("phase 2") along the slightly higher country east and west of Frijoles Creek. Ignition of the phase-1 burn was scheduled for May 4, 2000.
 Passage 2:In the 2007 off-season, Lucic signed an entry-level contract with the Bruins on August 2. He had been chosen as the Giants' next team captain, but made the Bruins' 2007–08 opening roster out of training camp. He played in his first career NHL game on October 5, 2007, a 4–1 loss to the Dallas Stars, in which he fought opposing forward Brad Winchester. His first goal came a week later on October 12 against Jonathan Bernier, a game winner, in an 8–6 win against the Los Angeles Kings. By also fighting Kings forward Raitis Ivanāns and notching an assist, he recorded a Gordie Howe hat trick (an unofficial statistic constituting a goal, an assist and a fight in one game). Unsure of whether the Bruins would keep him or return him to junior, he stayed in a downtown hotel in Boston to start the season. However, Lucic made enough of an impression during his first set of games with the Bruins, showing grit and consistent willingness to fight (he recorded 13 fighting majors in his rookie season), that they decided to keep him in the lineup. Bruins management informed the Giants prior to Lucic's tenth game, accounting for the NHL's nine-game maximum for junior-eligible players to stay with their NHL club without initiating their contract. He was chosen to participate in the 2008 NHL YoungStars Game and finished his rookie campaign with eight goals and 27 points. Towards the end of the season, he was voted by Bruins fans for the team's Seventh Player Award for exceeding expectations. Matched up against the first-seeded Montreal Canadiens in the opening round, Lucic scored his first Stanley Cup playoff goal in Game 3 on April 13, 2008. He finished his first NHL post-season with two goals as the Bruins were eliminated by the Canadiens in seven games.
 Passage 3:Watson graduated in 1943 with BS in electrical engineering from Iowa State College. From 1943 to 1946 he was a researcher at the United States Naval Research Laboratory in Washington, D.C. During his work for the U.S. Navy he went to night school at George Washington University. He graduated from the University of Iowa with Ph.D. in 1948 with thesis The polarizability of the meson-charge cloud of a neutron in an external electrostatic field. He was from 1948 to 1949 an Atomic Energy Commission (AEC) Fellow at the Institute for Advanced Study and from 1949 to 1951 an AEC Fellow at the Berkeley Radiation Laboratory. He was from 1951 to 1954 an assistant professor of physics at Indiana University and from 1954 to 1957 an associate professor of physics at the University of Wisconsin, Madison. In 1953 he was elected a fellow of the American Physical Society. From 1957 to 1981 he was a staff member of Lawrence Berkeley National Laboratory, as well as a professor of physics at the University of California, Berkeley. In 1974 he was elected a member of the National Academy of Sciences. From 1981 to 1991 he was the director of the Marine Physical Laboratory, Scripps Institute of Oceanography, as well as a professor of physical oceanography at the University of California, San Diego. In 1991 he retired as professor emeritus. His doctoral students include Shang-keng Ma.

A:
1