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 would likely decrease the food in an environment? (A) gravity (B) water evaporation (C) a tree (D) time

Ex Output:
B


Ex Input:
A a switch turns something with batteies on because: (A) electrons are then disturbed (B) a piece of metal closes the circuit (C) it lets the acid free (D) the circuit is opened

Ex Output:
B


Ex Input:
With a ruler I can measure (A) feelings (B) love (C) air (D) a phone

Ex Output:

D