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: when a body of water receives more water than it can hold , a flood occurs, Fact2: Flood probability is based on past floods., Question: How do we determine the probability of receiving more water than a body can hold? (A) evaporation (B) climate (C) The past (D) watershed (E) Dilution (F) energy usage (G) Temperature (H) salinity
Example Output: C

Example Input: Fact1: Viruses cause many human diseases., Fact2: Some smallpox viruses are maintained in laboratories., Question: What can smallpox cause? (A) contamination (B) harmful substances (C) vaccines (D) photosynthesis (E) extinction (F) cellular respiration (G) Destroy crops (H) human disease
Example Output: H

Example Input: Fact1: when the body is hot , sweat is produced to cool the body, Fact2: The sweat evaporates from your skin, cooling it., Question: How does evaporation benefit your body? (A) water conservation (B) digestion (C) vaporization (D) lowered energy cost (E) cools it down (F) attacks foreign bodies (G) storing water (H) reproduction
Example Output:
E