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").

Which process does the slate that comes from shale come from? (A) height (B) compression (C) gravity (D) steel
B

Nerves are used to feel what on the skin? (A) creativity (B) stares (C) emotions (D) coldness
D

Leaving remain oil supplies alone is a form of (A) conservation (B) deliberation (C) transportation (D) pollution

A