Teacher: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").
Teacher: Now, understand the problem? Solve this instance: Fact1: Most carcinogens cause cancer by producing mutations in DNA., Fact2: If it causes changes in DNA, it is considered a mutagen, or potential carcinogen., Question: What cause mutations in DNA? (A) Pesticides (B) smoking (C) chromosomes (D) protein (E) cigarettes (F) mutagens (G) amino acids (H) animals
Student:
F