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

[EX Q]: This seed carries food: (A) rock (B) strawberry (C) thunder (D) water
[EX A]: B

[EX Q]: Shrews are hunted by (A) horses (B) butterflies (C) deer (D) raptors
[EX A]:
D