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").

Example Input: Fact1: Evaporation of sweat uses energy, and the energy comes from body heat., Fact2: When sweat is evaporated into the air, it provides additional cooling., Question: Energy that comes from body heat can help with (A) recovery (B) commuting (C) movement (D) cooling (E) strength (F) stay warm (G) health (H) motion
Example Output: D

Example Input: Fact1: Veins generally carry deoxygenated blood., Fact2: Arteries and veins are blood vessels., Question: what generally carries deoxygenated blood? (A) blood vessels (B) animals (C) layers of fat (D) mammals (E) critical organs (F) an organism's body (G) elephants (H) athletes
Example Output: A

Example Input: Fact1: absorbing energy causes objects to heat, Fact2: Food has energy in it., Question: What causes objects to heat when absorbed? (A) coal (B) an ion (C) lipids (D) fur (E) sugar (F) food (G) Light (H) Gases
Example Output:
F