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:
What's usually hot in temperature? (A) the Sahara (B) Minnesota (C) Alaska (D) corpses

Ex Output:
A


Ex Input:
A dart frog is eaten by a pelican, who promptly (A) passes away (B) wakes up (C) eats birds (D) flies home

Ex Output:

A