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").

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
C

A stone may experience the most weathering over (A) a week (B) a year (C) a century (D) a decade
C

Humans sometimes eat what? (A) air (B) kernels (C) ocean water (D) rocks

B