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").

[Q]: Fact1: Some viruses can cause cancer., Fact2: Cancer is an example of a mutation in cells., Question: What can mutate cells? (A) Allergies (B) water (C) fruits (D) flow of electrons (E) vegetables (F) harmful substances (G) rays or beams (H) some viruses
[A]: H

[Q]: Fact1: Flagella help prokaryotes move., Fact2: Flagella and cilia are similar in structure., Question: What helps movement? (A) stamina (B) fur (C) cilia (D) hair (E) kinetic (F) nerves (G) motors (H) elastic
[A]: C

[Q]: Fact1: All cnidarians are aquatic., Fact2: Cnidarians are also called coelenterates., Question: What kind of creature are all coelenterates considered? (A) terrestial (B) chionophilous (C) bioluminescent (D) adult (E) aquatic (F) insects (G) social (H) angiosperm
[A]:
E