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]: A stone may experience the most weathering over (A) a week (B) a year (C) a century (D) a decade
[A]: C


[Q]: The rhino population is smaller than before because (A) cars crashed into rhinos (B) lions have become more effective at hunting rhinos (C) global warming has increased temperatures (D) people use parts for health remedies
[A]: D


[Q]: In an auction, how might a seller avoid too much of a loss? (A) buyer beware (B) Auction Block (C) Sealed Bid (D) setting a reserve
[A]:
D