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]: Cows know there is salt in a mineral lick because (A) they have receptors on their tongue that allow them to experience spice and seasonings (B) a cow in the ocean told them it was there (C) it's on their side of the pasture's fence (D) they evolved where there were great redwood trees
[EX A]: A

[EX Q]: When is fog most likely to occur (A) 3 p.m. (B) midnight (C) 6 p.m. (D) noon
[EX A]: B

[EX Q]: In the desert it was harder to find a (A) stream (B) cactus (C) dry bed (D) canyon
[EX A]:
A