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]: A boy is waiting to see a full moon. He notes that the full moon is tonight, and looks at it. If he wants to see another, he must wait (A) a week (B) a day (C) a fortnight (D) a month
[A]: D


[Q]: Why would a lightbulb be dark? (A) the bulb needs to be charged (B) the room is too bright (C) the circuit is incomplete (D) it ran out of electricity
[A]: C


[Q]: By picking up polypropylene we can make our ecosystem (A) ugly (B) worse (C) dead (D) better
[A]:
D