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").

Ex Input:
A thermal insulator slows the transfer of what? (A) warmness (B) light (C) energy (D) liquid

Ex Output:
A

Ex Input:
A lone fox is searching for its next meal in a meadow that used to be bountiful with food. This season, though, rabbits have all been eaten up and the field is dry and barren. The fox may (A) fly (B) speak (C) starve (D) float

Ex Output:
C

Ex Input:
If I wanted to get more nutrients in my body I could consume (A) magic (B) smoothies (C) my feelings (D) my anger

Ex Output:
B