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:
an animal needs to burn complex carbohydrates to (A) stay up (B) move (C) sit (D) sleep

Ex Output:
B


Ex Input:
What would be an example of migration? (A) Geese leaving Michigan for Florida when temperatures are dropping (B) Cattle going to the barn to sleep at night (C) Bats flying at night to catch mosquitoes (D) Bees flying to a patch of clover flowers

Ex Output:
A


Ex Input:
Toy submarines bob up and down when put in a bowl of (A) rice (B) vinegar (C) ice (D) sand

Ex Output:

B