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: What impacts an objects ability to reflect light? (A) color pallete (B) weights (C) height (D) smell
Example Output: A

Example Input: Birds sometimes eat what? (A) grass (B) underground crawlers (C) insecticide (D) trees
Example Output: B

Example Input: One way we pollute could be (A) using solar panels on the house (B) throwing plastic in the pacific (C) using plastic to make raincoats (D) using glass bottles to make a house
Example Output:
B