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: A bird is about to lay an egg, so it needs to construct a safe, round place to place the egg in. The bird constructs using (A) sticks (B) gum (C) rocks (D) tape
Example Output: A

Example Input: A way for an octopus to evade predators is to (A) befriend the predator (B) emulate a rock (C) swim around (D) bury itself underground
Example Output: B

Example Input: A shark will generally avoid eating fish that (A) they are symbiotic with (B) are their main prey (C) are already bleeding out (D) they like the taste of
Example Output:
A