In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").
Q: Fact1: a gasoline lawn mower converts gasoline into motion, Fact2: Gasoline is a motor fuel only., Question: What do lawn mowers use? (A) energy (B) two (C) motors (D) computers (E) engines (F) Energy. (G) grass (H) dirt
A:
C