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").

Ex Input:
Which of the following has a population of zero? (A) Merriam's elk (B) bison (C) llama (D) whooping crane

Ex Output:
A


Ex Input:
If a plant's extended portion is larger, it will (A) soak up more light (B) put out less pollen (C) be wilting very soon (D) fold in on itself

Ex Output:
A


Ex Input:
If farmers want larger chicken populations (A) they should reduce the rooster population (B) they should decrease the number of hens (C) they should encourage predation (D) they should research methods that increase laying

Ex Output:

D