Definition: 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: Plastics are made from petroleum and produce toxic waste., Fact2: Crude petroleum is imported for refining., Question: what does making plastic require? (A) digestion (B) weathering (C) less water (D) adding heat (E) recycling (F) Energy (G) death (H) refining
Output:
H