instruction:
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").
question:
You're most likely to encounter magma at (A) top of iceberg (B) a cloud (C) a space station (D) an island
answer:
D


question:
Adding salt to liquid decreases what? (A) light (B) energy (C) magnetism (D) thawing temp
answer:
D


question:
Pollution is (A) trees in a green forest (B) when wind carries seeds (C) throwing a candy wrapper down (D) Fish swimming in the sea
answer:

C