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").

Input: Consider Input: Obstacles that might impede a dune are (A) God (B) emotions (C) cacti (D) cancers

Output: C


Input: Consider Input: 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

Output: B


Input: Consider Input: A mark of adulthood common in most species is (A) paying bills (B) reproduction (C) fighting (D) death


Output: B