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: if the surface of our planet is different after a while, what could have happened? (A) the surface eroded on its own (B) all of these (C) there were natural occurrences (D) man has damaged the surface

A: B
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Q: Solar energy is adsorbed by (A) planted flowers under the moonlight (B) potted flowers in a windowless room (C) planted flowers on a bright, clear day (D) seeds that have just been planted in the ground

A: C
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Q: An animal's brain (A) acts as a conduit for the lungs (B) acts as a command base for the body (C) lacks the ability to use spacial reasoning (D) only assists in movements

A:
B
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