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 example of an instinctive behavior is (A) doing a cartwheel outside (B) singing on a stage (C) eating a large pizza (D) a mother feeding the kids

Ex Output:
D


Ex Input:
A telescope uses what to redirect light (A) money (B) shiny glass (C) lasers (D) people

Ex Output:
B


Ex Input:
A screw will increase in temperature when set in the sun's path, why? (A) heating element (B) building device (C) conduction (D) convection

Ex Output:

C