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: volcanic ash in the atmosphere decreases the temperature by blocking the sun, Fact2: Cone volcanoes are associated with thick lava and much ash., Question: Which of the following can lower the temperature of the Earth? (A) flying satellites (B) feedback mechanisms (C) trucks and cars (D) the richter scale (E) cone volcanoes (F) very complex (G) magnesium (H) moving plates
A:
E