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]: Northern countries have extensive erosion due to (A) glacial liquification (B) cola mining (C) more frequent tornadoes (D) meteors
[EX A]: A

[EX Q]: A vehicle rounds a corner and slips, squealing. The tires at that point experienced (A) less friction (B) more friction (C) free falling (D) zero friction
[EX A]: B

[EX Q]: What could you use to thaw something quickly? (A) water vapor (B) a refrigerator (C) a freezer (D) ice
[EX A]:
A