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]: Quartz can very easily damage (A) smelted silica (B) granite (C) diamonds (D) steel
[EX A]: A

[EX Q]: A pelican is hungry, so decides to try to catch some fish. In order to do this, the pelican will (A) use the back of its head (B) use the bottom of its stomach (C) use the front of its face (D) use the back of its tail
[EX A]:
C