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 the best example of a live birth? (A) a fish laying a clutch (B) a platypus warming an egg with its furry body until a baby is born (C) a bird warming the eggs in her nest until they hatch (D) a koala delivering into her pouch

Ex Output:
D


Ex Input:
In a zoo, a polar bear exhibit will contain (A) salt (B) cacti (C) strong fans (D) sand

Ex Output:
C


Ex Input:
If you're suffering from hypothermia it would help to get close to (A) an air conditioner (B) a boat (C) a mountain (D) an oven

Ex Output:

D