In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").

Q: The basic outside of our planet is comprised of (A) types of stone (B) frozen green grass (C) solid ice balls (D) molten hot lava

A: A
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Q: Locusts historically always affect crops (A) in the sky (B) disadvantageously (C) near water (D) positively

A: B
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Q: Magnetic media, such as TVs, computer monitors, credit cards and pacemakers can be damaged when exposed to (A) neodymium (B) a paper clip (C) copper penny (D) metal nails

A:
A
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