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").

[EX Q]: Fact1: Wings are part of the exoskeleton and attached to the thorax., Fact2: Insects have exoskeletons., Question: What is attached to insects' thorax? (A) sugar (B) Energy. (C) antennae (D) Energy (E) wings (F) nothing (G) food (H) pancreas
[EX A]: E

[EX Q]: Fact1: Adult worms go through a major transformation to develop reproductive organs., Fact2: An enlarged cummerbund-like band near the worm's head holds the reproductive organs., Question: What grows a cumberbund-like band around itself in adulthood? (A) legumes (B) Bats (C) mammals (D) bamboo (E) swea (F) worms (G) fungi (H) bushes
[EX A]: F

[EX Q]: Fact1: a telephone is used for communication by humans over long distances, Fact2: Long-distance telephone calls can also use radio waves or microwaves., Question: What waves does a telephone use? (A) unique (B) power (C) energy (D) fibers (E) sound (F) strong (G) Radio (H) two
[EX A]:
G