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").

[EX Q]: Fact1: when the seasons change from the summer to the fall , the amount of daylight will decrease, Fact2: Then the days become colder and the number of daylight hours decreases., Question: what do days become in fall? (A) rainy (B) ligt (C) cold (D) stormier (E) colder (F) hotter (G) longer (H) air cools
[EX A]: E

[EX Q]: Fact1: Evolution occurs by a process called natural selection., Fact2: Adaptation is the result of natural selection., Question: What leads to evolution? (A) Plants growth (B) competition (C) Adatation (D) our star (E) Experimentation (F) Stagnation (G) environment (H) Information
[EX A]: C

[EX Q]: Fact1: Ethanol is produced by alcoholic fermentation of the glucose in corn or other plants., Fact2: Glucose, a type of sugar, is the body's fuel., Question: What is ethanol produced from? (A) coal (B) sugar (C) SO2 (D) animal fat (E) paper (F) salts (G) Trees (H) Oak
[EX A]:
B