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").

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
C

If you want to bottle your own pop, you should invest in (A) Andy Warhol paintings (B) an aluminum mine (C) blonde dye bottles (D) a telescope
B

Great lakes may have come to be thanks to (A) many visitors (B) ice pillars (C) large mice (D) snow clouds

B