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: Organisms with only one cell (A) are prohibited from specializing (B) can freely specialize openly (C) are unsure what specializing is (D) learn how to specialize
Example Output: A

Example Input: Which of the following, when plugged into an outlet, completes a circuit? (A) gold (B) glass (C) plastic (D) rubber
Example Output: A

Example Input: Which creature would be safest from predators in its natural underground habitat? (A) moles (B) lizards (C) eagles (D) sardines
Example Output:
A