Instructions: 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").
Input: Fact1: friction causes an object to lose energy, Fact2: Objects become confusing, such as toasters, bathtubs, cars and forks., Question: what causes a car to lose energy? (A) Temperature (B) gas (C) slipperiness (D) friction (E) heat (F) lack of resistance (G) Dehydration (H) wind
Output:
D