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: the Earth being tilted on its rotating axis causes seasons, Fact2: Spring, summer, autumn, and winter are the seasons of the year., Question: What causes spring, summer, autumn, and winter? (A) meteor showers (B) heat production (C) the sun's energy (D) Generating heat (E) Earth tilted on rotating axis (F) Something with a head, thorax, and abdomen (G) Earth vibrating (H) lunar cycle
[A]: E


[Q]: Fact1: All chemical reactions require activation energy to get started., Fact2: Fire is a chemical reaction., Question: What does fire require to get started? (A) an engine (B) activation energy (C) water (D) energy usage (E) direct energy (F) dogs (G) activated almonds (H) adding heat
[A]: B


[Q]: Fact1: wind is used for producing electricity, Fact2: Electrical energy is also energy., Question: What is wind used for? (A) producing energy (B) Movement of an air mass (C) animal transport (D) cutting hair (E) spread flower seeds (F) Metling snow (G) smoking cigarettes (H) freezing ice
[A]:
A