instruction:
In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").
question:
Fact1: telephones are used for communication by two people by transmitting sound, Fact2: And the sound of their voice becomes important as well., Question: What is transmitted with telephones? (A) voice (B) copper (C) waves (D) smell (E) cancer (F) energy (G) HIV (H) power
answer:
A


question:
Fact1: hydropower requires damming a river, Fact2: Hoover Dam, the first dam on the Colorado River below Grand Canyon, was built between 1931 and 1935., Question: Which of these produces hydropower? (A) deuterostomes (B) Wind Turbines (C) power stations (D) Suez Canal (E) trout (F) Old Faithful Geyser (G) Hoover Dam (H) stations
answer:
G


question:
Fact1: Wings are part of the exoskeleton and attached to the thorax., Fact2: Butterflies bask to heat up their wing muscles for flight., Question: What organism's instruments of flight are part of the exoskeleton and attached to the thorax? (A) insects (B) organs (C) barnacles (D) butterflies (E) to move people (F) honeybees (G) it needs them (H) Electric devices
answer:

D