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: a pesticide is used for protecting plants by killing insects, Fact2: Pesticides also kill beneficial insects that pollinate flowers and prey upon harmful insects., Question: What is used for protecting plants while killing beneficial pollinators? (A) watering cans (B) dangerous (C) toxins (D) pesticide (E) irrigation (F) exoskeleton (G) steroids (H) plant food
[EX A]: D

[EX Q]: Fact1: chemical weathering causes iron in rock to oxidize, Fact2: Iron oxides are produced that are red, orange, or brown in color., Question: What does chemical weather cause iron to do? (A) Change to rainbow colors (B) flow of electrons (C) contamination (D) Stay the same (E) It gets heated up (F) Plant growth is reduced (G) Change gender (H) Change color to brown
[EX A]:
H