instruction:
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").
question:
A bear hibernates through cold weather because (A) bears get very tired (B) it is gestating young (C) resources are scarce in winter (D) winter is too cold
answer:
C


question:
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
answer:
B


question:
Which three events are likely to occur once per day? (A) 3 cycles of day, 3 cycles of night, and birds chirping as the sun rises (B) a cycle of day, a cycle of night, and a motorcycle (C) a cycle of day, a cycle of night, and birds chirping as the sun rises (D) a cycle of day, a cycle of night, and birds flying
answer:

C