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:
Which ingredient may cause chemical change? (A) almonds (B) milk (C) citrus juice (D) olive oil

Ex Output:
C


Ex Input:
what do animals need to protect them from bad weather? (A) housing (B) food (C) water (D) clothing

Ex Output:
A


Ex Input:
It's too foggy to see more than two feet on a highway. This is because of (A) ash from a volcano (B) vapor of H2O condensed in the air (C) helium vapor in the air (D) a forest fire nearby

Ex Output:

B