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: when the seasons change from the summer to the fall , the amount of daylight will decrease, Fact2: Winter has short daylight hours and summer has short night hours., Question: what are summer nights? (A) warm (B) mild (C) slow (D) rainy (E) short (F) two (G) unique (H) cold
E