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").
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Question: Fact1: a stopwatch is used to measure time, Fact2: Reaction time was measured with a stopwatch in minutes and seconds., Question: What is used to measure minutes? (A) light (B) barometer (C) stopwatch (D) weater (E) thermometer (F) lamphreys (G) feedback (H) sound

Answer: C


Question: 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

Answer: F


Question: Fact1: Carbon may be stored in sedimentary rock for millions of years., Fact2: Limestone is a type of sedimentary rock., Question: What element can be stored in limestone for millions of years? (A) oxygen (B) Energy (C) matter (D) carbon (E) sodium (F) helium (G) rock salt (H) heat

Answer:
D