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:
It is possible to renew (A) sunflowers (B) oil (C) steel (D) stones
answer:
A


question:
Potential energy changes to kinetic energy when using a (A) computer (B) light bulb (C) television (D) bicycle
answer:

D