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").

We can calculate a speed if we know a number of (A) gallons (B) millimeters (C) dollars (D) pounds
B

If a dam is torn down, the beavers will (A) play (B) relocate (C) weep (D) reconsider
B

Some animals may use coloration for (A) eating (B) smells (C) love (D) protection

D