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:
Which of the following items can perform photosynthesis? (A) a flying wasp (B) a speedy cheetah (C) wet dirt (D) a yellow tulip

Ex Output:
D

Ex Input:
The cell membrane keeps a cell from (A) replicating (B) getting lost (C) falling apart (D) running away

Ex Output:
C

Ex Input:
A worm would most likely be eating (A) a living tree (B) a healthy human (C) a dead lizard (D) a living rat

Ex Output:
C