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: 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
[EX A]: A

[EX Q]: 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 A]: E

[EX Q]: Fact1: Minerals are chemical elements that are essential for body processes., Fact2: Water contains dissolved solids, all kinds of minerals., Question: Chemical elements that are essential to body processes can be found dissolved in what? (A) rivers (B) Petroleum (C) soil (D) Water (E) Hydrochloric acid (F) Rocks (G) Mercury (H) salts
[EX A]:
D