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:
An example of conservation is (A) jogging (B) reducing ethanol use (C) hiking (D) raking leaves

Ex Output:
B


Ex Input:
Plants grow because they (A) decide the time is right (B) can breathe a lot of air (C) use what people breathe out to survive (D) take photos of other plants

Ex Output:
C


Ex Input:
Tendons work with what to move the bodies skeletal system (A) wires (B) meat (C) robots (D) ropes

Ex Output:

B