Given the task definition and input, reply with output. 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").

Fact1: gases from burning coal and oil dissolving in water in the atmosphere causes acid rain, Fact2: Acid rain is precipitation which pH is 5.7 or lower., Question: Gases from what causes precipitation where the pH is 5.7 or lower? (A) Condensation (B) aqueous solution (C) streams (D) Pollution (E) evaporation (F) Organic compounds (G) vaporization (H) burning coal
H