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").

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
C

Buttercups can produce (A) their own nutrients (B) grow in space (C) ride horses (D) enter singing competitions
A

a scuba diver startles an octopus, and suddenly the water changed color, what happened? (A) it died and released a color (B) it was amused by the diver (C) it was trying to hide from the diver (D) it was thanking the diver

C