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: bacteria cause food poisoning, Fact2: Examples are the E-Coli bacteria and Hanta virus., Question: E.Coli poisoning can come from what? (A) germs (B) animal (C) toxins (D) death (E) food (F) skin (G) sunlight (H) running

Ex Output:
E


Ex 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

Ex Output:
C


Ex Input:
Fact1: Hydrogen bonds cause water to expand when it freezes., Fact2: Water is made up of H2O molecules., Question: What bonds cause H2O to expand when freezing? (A) Covalent (B) Hydrogen (C) Metallic (D) an ion (E) Heat energy (F) Ionic (G) heat (H) an anion

Ex Output:

B