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 learned behavior is exhibited when a human displays that they can: (A) squinting in bright light (B) digesting food in the stomach (C) change a car tire (D) inhaling and exhaling during sleep

SOLUTION: C

PROBLEM: If a leg is moving then the bones inside the skin are (A) being controlled by brawn (B) being slowly softened up (C) being made to break down (D) being torn into pieces

SOLUTION: A

PROBLEM: On a cloudy day (A) the clouds are thin (B) the sky is dark (C) the wind is strong (D) the sun is obscured

SOLUTION:
D