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: safety goggles are used for protecting the eyes during experiments, Fact2: Firm plastic eyeglasses or goggles are better., Question: What protects the eyes during experiments? (A) magnesium (B) Chemicals (C) Vibrissae (D) Type O (E) Rolex (F) plastic (G) water (H) wind
[A]: F


[Q]: Fact1: Some viruses can cause cancer., Fact2: Cervical cancer is caused by a virus, the human papaloma virus., Question: What is responsible for cervical cancer? (A) lmestone (B) Hemoglobin (C) alleles (D) A virus (E) chemicals (F) cigarettes (G) ovaries (H) smoking
[A]: D


[Q]: Fact1: Most carcinogens cause cancer by producing mutations in DNA., Fact2: Jet fuels are carcinogens., Question: What in an airplane can mutate organisms? (A) an anion (B) Damages them (C) Jet fuel (D) light energy (E) Toxicity (F) Allergies (G) kill them (H) heat
[A]:
C