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:
What could be used as an electrical conductor (A) A penny (B) Shoe laces (C) Wood (D) A button
answer:
A

question:
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
answer:
C

question:
A farmer wants to plant seeds, but first needs a field with soil. There is a field with pebbles, which have potential to become soil after experiencing (A) time's passage (B) light rain (C) cloudy days (D) gentle singing
answer:
A