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: 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: Wings are part of the exoskeleton and attached to the thorax., Fact2: Insect wings are attached to the dorsal side of their thorax., Question: What side of an insect are wings attached to? (A) white (B) dorsal (C) protected (D) abdomen (E) elytra (F) three (G) strong (H) tail
[A]: B

[Q]: Fact1: when the seasons change from the summer to the fall , the amount of daylight will decrease, Fact2: Seasons are caused by the Earth's distance from the Sun changing., Question: The change of the Earth's distance from the sun causes the amount of what to decrease? (A) air (B) daylight (C) energy (D) water (E) Weight (F) temperature (G) time (H) sunlight
[A]:
B