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.
Problem:Question: Which company manufactured the rifle that the Bundeswehr replaced in 1997? Passage 1:The Heckler & Koch G36 is a 5.56×45mm assault rifle, designed in the early 1990s by Heckler & Koch in Germany as a replacement for the heavier 7.62mm G3 battle rifle. It was accepted into service with the Bundeswehr in 1997, replacing the G3. The G36 is gas-operated and feeds from a 30-round detachable box magazine or 100-round C-Mag drum magazine. The G36 was made with the extensive use of lightweight, corrosion-resistant synthetic materials in its design; the receiver housing, stock, trigger group (including the fire control selector and firing mechanism parts), magazine well, handguard and carry handle are all made of a carbon fiber-reinforced polyamide. The receiver has an integrated steel barrel trunnion (with locking recesses) and a nylon 66 steel reinforced receiver. The standard German Army versions of the G36 are equipped with unique a ZF 3×4° dual optical sight that combines a 3× magnified telescopic sight and an unmagnified reflex sight mounted on top of the telescopic sight. Widely distributed, it has been adopted by over 40 countries and prompted other nations to develop similar composite designs, such as the FX-05 Xiuhcoatl.
 Passage 2:The effect was also used well throughout the whole 1993 Doctor Who charity special Dimensions in Time and in dream sequences of the 1997 3rd Rock from the Sun two-part season 2 finale Nightmare on Dick Street. In many countries in Europe, a series of short 3D films, produced in the Netherlands, were shown on television. Glasses were sold at a chain of petrol stations. These short films were mainly travelogues of Dutch localities. A Power Rangers Lightspeed Rescue movie called Power Rangers in 3D: Triple Force (later broadcast as two-part Trakeena's Revenge) sold on VHS through McDonald's purportedly used "Circlescan 4D" technology, which is based on the Pulfrich effect, but there was very little 3D present. In the United States and Canada, six million 3D Pulfrich glasses were distributed to viewers for an episode of Discovery Channel's Shark Week in 2000. Animated programs that employed the Pulfrich effect in specific segments of its programs include Yo Yogi!, The Bots Master, and Space Strikers; they typically achieved the effect through the use of constantly moving background and foreground layers.
 Passage 3:Tanaka made his New Japan Pro Wrestling debut on April 10, 1999 and would proceed to take part in Best of the Super Juniors in block B. Tanaka would reappear for New Japan in late 1999 to early 2000 before he joined the New Japan roster as a full-time competitor. His natural talent enabled him to immediately rise in the junior heavyweight ranks and win the IWGP Junior Heavyweight Tag Team Championship in July with Koji Kanemoto, who used a similar but more ground-oriented style. The Kanemoto-Tanaka combination was reminiscent of the old Akira Maeda-Nobuhiko Takada combination in 1987. In October, Tanaka won the IWGP Junior Heavyweight Championship - thus becoming the first man to hold both junior titles at the same time. In March 2001, Tanaka and Kanemoto lost their titles to El Samurai and Jushin Thunder Liger, in June he lost in the finals of 2001's Best of the Super Juniors to Liger and in July he lost his singles title. Even with all these losses, Tanaka finished 2001 strong, winning the G1 Jr. Six Man Tag Team Tournament Masahito Kakihara and Masayuki Naruse. For a second time in his career, Tanaka held both junior titles, defeating Masahito Kakihara for the IWGP Junior Heavyweight Champion and defeating Gedo and Jado with Jushin Thunder Liger for the IWGP Junior Heavyweight Tag Team Championship. After Koji Kanemoto defeated Tanaka in 2002's Best of the Super Juniors, Kanemoto defeated Tanaka once again for his IWGP Junior Heavyweight Championship, and a month later lost his tag team championship to Tsuyoshi Kikuchi and Yoshinobu Kanemaru.

Solution:
1