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]: pushing against a rolling boulder will decrease its (A) size (B) height (C) impetus (D) ambitions
[A]: C


[Q]: Rocket engines can lift rockets because (A) of how much fuel they use (B) of how fast they are (C) of the power the hit the ground with (D) of how tall they are
[A]: C


[Q]: Pit bulls thin their thicker coats by (A) getting a haircut (B) shaving (C) shedding (D) selling
[A]:
C