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 is competition? (A) a giraffe eats the highest leaves (B) a bear takes a salmon from the stream (C) a shark eats a tuna that an orca was hunting (D) a slug eats a blade of grass

Ex Output:
C


Ex Input:
You're most likely to encounter magma at (A) top of iceberg (B) a cloud (C) a space station (D) an island

Ex Output:
D


Ex Input:
All organism require food to satiate themselves, grow big and strong, and also (A) heal (B) make money (C) have fun (D) cry

Ex Output:

A