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 Input:
Fact1: Bottleneck effect occurs when a population suddenly gets much smaller., Fact2: Fishing pressure is relatively low due to a smaller human population., Question: What can make the bottleneck effect occur in fish? (A) increased habitat (B) acid rain (C) humans (D) Winter (E) increased food (F) storms (G) increased resources (H) Toxicity

Ex Output:
C

Ex Input:
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

Ex Output:
B

Ex Input:
Fact1: Sweat wets the skin, and when it evaporates, it cools the body., Fact2: Skin is hot and red, but wet with sweat., Question: the body is what after evaporation, when wet skin is hot and red? (A) expelled (B) protected (C) insulated (D) air cools (E) liquid (F) heated (G) warmed (H) cooled

Ex Output:
H