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:
A prickly pear absorbs nutrients from (A) below it (B) far from it (C) beside it (D) above it

Ex Output:
A


Ex Input:
Quartz can very easily damage (A) smelted silica (B) granite (C) diamonds (D) steel

Ex Output:
A


Ex Input:
Recycling which of the following has a positive impact on the environment? (A) acquired earth materials (B) rocks (C) car pools (D) bees

Ex Output:

A