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 has molecules? (A) a Popsicle (B) suicide (C) therapy (D) thoughts

Ex Output:
A


Ex Input:
Which event includes melting? (A) making ice (B) cooking in butter (C) cutting carrots (D) buttering bread

Ex Output:
B


Ex Input:
Some vapor is condensing now because it has less (A) gas (B) heat (C) water (D) steam

Ex Output:

B