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:
Drinking cola daily removes layers from the surface of (A) enamel on molars (B) spoons (C) porcelain (D) the coffee pot
answer:
A


question:
Thirteen times a year, roughly, the moon (A) crashes into the Earth (B) is orbited by the Earth (C) lights up the Earth (D) completely rotates the Earth
answer:
D


question:
A skunk produces a bad what? (A) job (B) plastic (C) energy (D) nose experience
answer:

D