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").

[Q]: which form of transportation has zero emissions? (A) motorbikes (B) speed boats (C) hybrid cars (D) pedal bikes
[A]: D


[Q]: How does erosion impact a river? (A) enlargening (B) warming (C) heightening (D) shrinking
[A]: A


[Q]: A supermodel with a big nose probably (A) ate an animal with a big nose (B) had a parent also with one (C) didn't pay the photographer enough (D) ate dog food a lot
[A]:
B