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").

[EX 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
[EX A]: A

[EX Q]: When we made some confetti it differed from the original sheets of paper in (A) color (B) pattern (C) temperature (D) shape
[EX A]: D

[EX Q]: A compass uses natural magnetism so it works only because (A) the world is positive (B) the world is wet (C) the Earth is fat (D) the Earth yanks it
[EX A]:
D