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:
energy is required for survival, and this is primarily delivered by (A) the moon shining at night (B) the fifth planet from the sun (C) the closest star to our planet (D) the vast ocean body

Ex Output:
C


Ex Input:
which of these environments would better support photo film development? (A) a dense forest nook (B) a lush green meadow (C) a sparsely populated forest (D) an open sahara desert

Ex Output:
A


Ex Input:
in which of these conditions could one most likely skid off the road? (A) driving on a dry day (B) driving in optimal conditions (C) driving on an icy day (D) driving on a clear day

Ex Output:

C