TASK DEFINITION: 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").
PROBLEM: Rocket engines can lift rockets because (A) of how much fuel they use (B) of how fast they are (C) of the power the hit the ground with (D) of how tall they are

SOLUTION: C

PROBLEM: in order for a person's burger to make it successfully into the toilet, which of these must be functional? (A) the respiratory system (B) the digestive system (C) the circulatory system (D) the destructive system

SOLUTION: B

PROBLEM: Dropping butter into a boiling water would cause it to (A) hoover (B) grow (C) liquefy (D) refreeze

SOLUTION:
C