Detailed Instructions: 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: In what year was George Canning Prime Minister? Passage 1:Granite Canyon is located in Grand Teton National Park, in the U. S. state of Wyoming. The canyon was formed by glaciers which retreated at the end of the last glacial maximum approximately 15,000 years ago, leaving behind a U-shaped valley. The canyon lies between Rendezvous Mountain to the south and Mount Hunt to the north. The trailhead for the canyon is on the Moose–Wilson Road about north of Teton Village. One of the most popular hikes from the trailhead is to Marion Lake by way of the Granite Canyon Trail which traverses the length of the canyon. Another popular hike involves riding the aerial tram located at the Jackson Hole Mountain Resort in Teton Village to the top of Rendezvous Mountain, and then descending back to Teton Village by way of Granite Canyon. The descent from the summit of Rendezvous Peak back to Teton Village is an often steep one with an altitude loss of . The historic Upper Granite Canyon Patrol Cabin is situated near the entrance to the canyon and was listed on the National Register of Historic Places in 1998.
 Passage 2:Garvagh was the son of Paul Canning and the grandson of Stratford Canning of Garvagh in County Londonderry. Prime Minister George Canning and the diplomat Stratford Canning, 1st Viscount Stratford de Redcliffe, were his first cousins. He was elected to the House of Commons for Sligo Borough in 1806, a seat he held until 1812, and then represented Petersfield from 1812 to 1820. On 1 February 1810 he was elected a Fellow of the Royal Society and on 28 October 1818 he was raised to the Peerage of Ireland as Baron Garvagh, of Garvagh in the County of Londonderry. Lord Garvagh later served as Lord Lieutenant of County Londonderry between 1831 and 1840. He died while staying at a hotel in Châlons-sur-Marne (now renamed Châlons-en-Champagne) in August 1840, aged 61, and was succeeded in the barony by his son Charles Henry Spencer George Canning.
 Passage 3:Through the entire river border, near the eastern shore, the Finnish national road 21/European route E8 runs between Tornio and Kilpisjärvi. The Swedish national road 99 runs near the western shore along most of the border. Bridges across the river border can be found in Karesuvanto/Karesuando (road 959/E45), Muonio (road 954/404), Kolari (road 943/403), Pello (road 937/402) and in Aavasaksa/Övertorneå (road 98). There are also two river bridges in Tornio (one carries the European route E4, also Finnish national road 29), but they don't cross the border. The border is crossed by three roads in Haparanda/Tornio. South of the centre, the Torne River Railway Bridge crosses the river and the border.

A:
2