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:
What will air usually do when heated up beyond a certain point? (A) it will fall (B) it will remain (C) it will ascend (D) it will die

Ex Output:
C

Ex Input:
If an environment experiences a long drought (A) animals will experience a boom in reproduction (B) ponds may dry up and kill off the fish population (C) tadpoles will mature faster into frogs (D) plants will continue to flourish

Ex Output:
B

Ex Input:
Every single bit of growth and life on earth is connected to the power of (A) solar aliens (B) magic orbs (C) magic beans (D) daylight

Ex Output:
D