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: Who declared the Soviet Republic a socialist state during the October Revolution? Passage 1:The Russian Soviet Republic was proclaimed on 7 November 1917 (October Revolution) as a sovereign state and the world's first constitutionally socialist state with the ideology of Communism. The first Constitution was adopted in 1918. In 1922, the Russian SFSR signed the Treaty on the Creation of the USSR officially setting up of the Union of Soviet Socialist Republics. The 1977 Soviet Constitution stated that "[a] Union Republic is a sovereign [...] state that has united [...] in the Union" and "each Union Republic shall retain the right freely to secede from the USSR". On 12 June 1990, the Congress of People's Deputies adopted the Declaration of State Sovereignty, established separation of powers (instead of Soviet form of government), established citizenship of Russia and stated that the RSFSR shall retain the right of free secession from the USSR. On 12 June 1991, Boris Yeltsin (1931–2007), supported by the Democratic Russia pro-reform movement, was elected the first and only President of the RSFSR, a post that would later become the presidency of the Russian Federation.
 Passage 2:He launched Magill magazine in September 1977 with Noel Pearson and Mary Holland. Magill became Ireland's foremost investigative publication. Among its writers were Gene Kerrigan, Pat Brennan and Paddy Agnew. He remained editor of Magill until 1983, when he became involved in the relaunch of the Sunday Tribune with Tony Ryan, then of GPA and later of Ryanair. A series of articles he published in Magill highlighting the links between the Workers' Party of Ireland and the Official IRA in the 1980s caused him and other journalists to receive death threats. After the publication of "The Lost Revolution: the Story of the Official IRA and the Workers' Party" it was revealed that the Official IRA had planned to assassinate him by planting a bomb on his boat, but the operation was called off at the last minute. He was editor of the Sunday Tribune until 1994. He has written a weekly column for The Irish Times since then, and since 2000, has written weekly for The Sunday Business Post. He started broadcasting on RTÉ radio in 1996.
 Passage 3:Bell grew up on a farm and helped to run the Church Farm caravan site, complete with its own pub, near Pagham Harbour before being encouraged by his stepfather Bernard Hender to take up racing with a Lotus Seven in 1964. He won his first race in the Lotus at Goodwood in March of that year. He graduated to Formula Three in the following year racing a Lotus 31 and in 1966 switched to a Lotus 41 scoring his first victory, again at Goodwood. In 1967 he enjoyed seven wins. He entered Formula Two in a privateer Brabham BT23C fielded by his stepfather's Church Farm Racing team and after several promising performances, which caught Enzo Ferrari's eye, made his Formula One Grand Prix debut for Ferrari at Monza in 1968. He contested the 1969 Tasman Series in a 2.4 Dino and was second at Lakeside to Amon and Rindt at Warwick Farm. In 1969 he raced the four-wheel-drive McLaren M9A in its only ever race at the British Grand Prix at Silverstone.
1