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: Which would likely need a hot plate? (A) physics class (B) chemistry class (C) english class (D) math class
Example Output: B

Example Input: Flowers with more pollinators (A) escalate reproduction (B) increase water usage (C) increase visual appeal (D) decrease reproduction
Example Output: A

Example Input: the nervous system sends observations in the form of electrical signals to what? (A) cell towers (B) persons flesh (C) computers (D) plugs
Example Output:
B