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").

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
B

A person in a suit near a sunken ship is sprayed in the face with a dark substance by (A) a cephalopod (B) a bear (C) a hose (D) a pencil
A

Which likely completes a circuit? (A) a bird's eye (B) a dog's paw (C) a wooden ruler (D) your phone's keys

D