TASK DEFINITION: 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").
PROBLEM: 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

SOLUTION: C

PROBLEM: Factories often add something to the environment that is (A) helpful (B) productive (C) sanitizing (D) posionous

SOLUTION: D

PROBLEM: Ethanol sometimes might be (A) concocted (B) love (C) magic (D) affection

SOLUTION:
A