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").

[EX Q]: A plane travels through what? (A) gas layers (B) plains (C) oceans (D) time
[EX A]: A

[EX Q]: A thousand new trucks are put on the road carrying produce. As a result (A) distant cities burn down (B) things stay the same (C) distant locations build quarries (D) distant locations have greater produce options
[EX A]: D

[EX Q]: As a plant's roots get bigger, they split apart (A) worms (B) water (C) granite (D) atoms
[EX A]:
C