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").

Example Input: Grooves in the ground are a sign of (A) sink holes (B) erosion (C) water accumulation (D) high traffic
Example Output: B

Example Input: A rock may be used as a shelter by a (A) chicken (B) spider (C) giant squid (D) deer
Example Output: B

Example Input: Which of these are essential to people who commute to work in an automobile? (A) cats (B) clouds (C) dogs (D) dead dinosaurs
Example Output:
D