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:
Max mixed some orange flavored powder in a glass of water until there it was dissolved. His sister tasted it and it tasted like (A) cola (B) dark chocolate milk (C) a citrus fruit (D) lemons and apples

Ex Output:
C

Ex Input:
an area of low-lying ground near to a river is at risk of (A) over fishing (B) balloon landings (C) droughts (D) H20 accumulation

Ex Output:
D

Ex Input:
A living thing will expire if access to this is removed for a time. (A) balloons with helium gas (B) their favorite new shoes (C) a comfortable sitting chair (D) ability to experience respiration

Ex Output:
D