Instructions: 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: If a person is choosing to be near a metal heat source, normally located on a building's interior wall, then that person (A) is combusting (B) is too hot (C) desires warmth (D) is on fire
Output:
C