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]: Pulse accelerates (A) when cooling down after a work out (B) when running pace increases (C) when running pace slows (D) when entering into a sleep state
[A]: B


[Q]: What becomes smoother through weathering? (A) rainbow (B) water (C) cat (D) pumice
[A]: D


[Q]: A cell can photosynthesize if it is (A) a ferret's (B) a tern's (C) a willow's (D) a gila monster's
[A]:
C