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:
You are unable to naturally make yourself taller because height is determined by (A) parents (B) Cookies (C) Space (D) Eggshells

Ex Output:
A


Ex Input:
A tree must depend upon, for its support (A) A large fibrous mass (B) plants on the forest floor (C) the wooden welfare state (D) massive redwoods on the backs of turtles

Ex Output:
A


Ex Input:
Organisms can be preserved in (A) Sandstone (B) Water pipes (C) Cars. (D) Trees

Ex Output:

A