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").
Q: Fact1: if a thermal conductor is exposed to a source of heat then that conductor may become hot, Fact2: Copper is a great thermal conductor., Question: What becomes hot when exposed to a source of heat? (A) rubber (B) wool (C) an object (D) copper (E) paper (F) sugar (G) the skin (H) our star
A:
D