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: How long had the National Assembly been active at the time they adopted the Constitution of the Republic of China? Passage 1:Bar-sur-Aube is located some 30km west by north-west of Chaumont and 25km south-east of Brienne-le-Chateau. Access to the commune is by the D619 road from Ailleville in the north-west which passes through the centre of the commune and the town before continuing east to Lignol-le-Chateau. The D396 branches off the D619 south-east of the town and goes south to Juvancourt. The D4 goes south-west from the town to Couvignon. The D13 comes from Fontaine in the south and passes through the town before continuing north-east to Colombe-la-Fosse. The D384 goes north to Ville-sur-Terre while the D73 branches off it in the town and goes to Arrentieres. in the north. The TER Champagne-Ardenne Troyes to Chalindrey railway passes through the commune coming from Vendeuvre-sur-Barse to the west to Bricon in the south-east with a station in the town. With a substantial urban area in the west and some forest in the south the commune is mostly farmland.
Passage 2:According to the United States Census Bureau, the township has a total area of , of which is land and , or 0.08%, is water. Geophysically, it is located within the great bend or kink of the lower Lehigh River mouth region due north of the cities of Allentown, NNW of Bethlehem and due west of Easton, Pennsylvania (on the mouth of the Lehigh). Moore Twp. contains one riverine drainage divide such that to the west it is drained into the Delaware River via historic Catasauqua Creek, Monocacy and especially Hokendauqua creeks, all of which originate in the township and are tributaries of the Lehigh River, and by the south and east draining Bushkill Creek tributary of the Delaware River (upper right corner of map above and right). Its landscapes compose the foothills south of its natural northern boundary the over long Blue Mountain barrier ridge.
Passage 3:The current Constitution of the Republic of China was adopted by the National Assembly in 1947, when the Nationalist Government was based in Nanjing. Since 1945, China was engulfed in a civil war that pitted the Nationalist Government against the Communist Party of China (CPC). In March 1948, the first National Assembly met in Nanjing, and after some deliberation, decided to invoke Article 174 of the Constitution to amend the Constitution". On 10 May 1948, the Assembly adopted the first set of Temporary Provisions that was set to expire after three years. In 1949, the Communists expelled the Nationalist Government from mainland China, and Chiang's government set up base in Taipei, Taiwan. In 1954, the National Assembly indefinitely renewed the Temporary Provisions in view of the Kuomintang's plans to recapture the mainland. The Temporary Provisions from then on were amended in accordance with the needs of the President of the Republic of China, Chiang Kai-shek, or his son Chiang Ching Kuo. In 1966, the Temporary Provisions were revised to allow for supplementary elections to the National Assembly from the Taiwan Area. In 1971, the ROC was expelled from the United Nations and replaced with representatives from the People's Republic of China; the Temporary Provisions were amended again the same year.
3