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: 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
[EX A]: D

[EX Q]: Fact1: Reproduction is the process by which organisms give rise to offspring., Fact2: Then, the lowest energy offspring are used as parents for the next generation., Question: The next generation of an organism rises via: (A) Plants growth (B) spontaneous generation (C) reproduction (D) The Sun (E) revolution (F) sun's heat (G) heat energy (H) unions
[EX A]: C

[EX Q]: Fact1: Macroevolution is evolution over geologic time above the level of the species., Fact2: Evolution has occurred over geologic time., Question: Over what periods has macroevolution happened? (A) future (B) relocation (C) geologic (D) earthquakes (E) erosion (F) modern (G) Winter (H) current
[EX A]:
C