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 horse in a field under the summer sun was glistening wet even though it hadn't rained. (A) the other horses were licking that horse (B) sweat glands released liquid to cool off the horse (C) sweat glands dried up (D) The horse needed a shower and was getting oily
Example Output: B

Example Input: Which of the following areas would most likely contain a sandbar? (A) the bottom of a pond (B) where water continuously moves sand and small rocks downstream (C) a school play area (D) a car manufacturing plant
Example Output:
B