Given the task definition and input, reply with output. 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 was the primary leader of the March 14 Alliance? Passage 1:Eventually the concept of the BBC/Flextech channels led the launch of UKTV in September 1997, with BBC Horizon becoming UK Horizons, BBC Style becoming UK Style and BBC Arena becoming UK Arena. Also the concept of a television version of BBC Radio 1 was reused for the UK Play channel, which launched on October 1998, but became defunct in September 2002 and the concept of BBC Catch-Up was later reused for the channel Watch, which was launched on October 2008. The concept of a dedicated BBC Sport channel never materialised, however, it has been reused when BBC Parliament was temporarily replaced by a dedicated BBC Sport channel in the 2008 Summer Olympics and the 2012 Summer Olympics, plus a range of dedicated BBC Sport channels was launched specifically for the 2012 Summer Olympics, plus there is a BBC Sport interactive channel that is available on Freeview channel 301 as a part of the BBC Red Button service.
 Passage 2:On December 1, 2006, a series of protests and sit-ins began in Lebanon, led by groups that opposed the government of Prime Minister Fouad Siniora. The opposition group was made up of pro-Syrian Hezbollah and Amal. A number of smaller parties were also involved, including the Marada Movement, the Lebanese Communist Party and the Syrian Social Nationalist Party. Members of the government are part of the March 14 Alliance, a coalition of anti-Syrian political parties and former militias that include the Progressive Socialist Party, the Lebanese Forces and the Future Movement. The two groups are also divided along religious lines, the majority of Sunnis supporting the government and the Shi'a supporting the opposition group. Druze aligned with Walid Jumblatt support the government, while those allied to Talal Arslan have backed the opposition. The Christian community is divided as well, with Michel Aoun claiming to have 70% of the Christian community's support, based on the results of 2005 parliamentary elections. The opposition demanded that the government resign after Shi'a ministers had left the government in protest against a decision concerning the Hariri tribunal, thus unbalancing the proportional representation of religious groups as stipulated by the Lebanese Constitution. The standoff between the March 14 government and the March 8 opposition resulted in a year-long deadlock over the election of a new President to succeed Emile Lahoud whose term had expired.
 Passage 3:In 1902, when Herzfeld was 10 years old, he was enrolled in the private Gymnasium Schottengymnasium, which was run by the Benedictine Order of the Roman Catholic Church and had its name derived from the fact that the founders came from Scotland. He attended this school until 1910, when he began attending the University of Vienna to study physics and chemistry. In 1912, he took courses at the University of Zurich and the Eidgenössische Technische Hochschule Zürich (ETH). It was in Zurich he met Otto Stern, who was at the ETH; Herzfeld later credited conversations with Stern for his deeper understanding of thermodynamics. In 1913, he went to study at the University of Göttingen, after which Herzfeld returned to Vienna, and was granted his doctorate in 1914, under Friedrich Hasenöhrl, who had become Director of the Institute for Theoretical Physics, upon the suicide of Ludwig Boltzmann in 1906.
2