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").

Example Input: a student leaves a nail line on a mineral sample, so that mineral can be described as what? (A) a mineral (B) a soft mineral (C) a liquid mineral (D) a mineral melt
Example Output: B

Example Input: An action that may provide a small bit of warmth could be (A) looking out of a window (B) putting the radio on (C) looking at a snow storm (D) smashing hands together repeatedly
Example Output: D

Example Input: An example of how melting is achieved is seen in (A) cooking stew in a crockpot (B) using an oven to heat a pizza (C) using a stove to warm frozen vegetables (D) using a hairdryer to turn ice to water
Example Output:
D