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


[Q]: What could be used to find out how much carpet is needed for a room? (A) a tape measure (B) a compass (C) a barometer (D) a beam balance
[A]: A


[Q]: If a thing has a good impact on nature, it is most likely (A) putting plastics in special containers (B) burning old used tires (C) putting cigarettes out in ponds (D) using aerosol air fresheners
[A]:
A