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 needs measurements taken in the morning and evening? (A) coastal range (B) tidal range (C) wave length (D) apex
[EX A]: B

[EX Q]: Which of the following most likely led to certain rocks having less friction? (A) a babbling brook (B) people (C) a light wind (D) money
[EX A]: A

[EX Q]: The thermal production of a stove is generically used for (A) warming food (B) heating homes (C) producing food (D) cooling pets
[EX A]:
A