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:
What is one thing cloud precipitation can be? (A) a thunder boom (B) a liquid fire (C) unfavorable weather outlook (D) none of these

Ex Output:
C


Ex Input:
If you see a mushroom on an old decaying log, its because a mushroom is a decomposer, which gets its food from (A) non-alive things (B) space (C) computers (D) the store

Ex Output:
A


Ex Input:
A herd of cattle is slowly making its way through a large field. The shepherd realizes that he forgot to bring grain for the cattle, yet the cattle will survive just fine in the field, because (A) they eat roughage (B) they hunt meat (C) they eat insects (D) they eat prey

Ex Output:

A