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: skin is used for protecting the body from harmful substances, Fact2: Skin is a protective organ., Question: A protective what protects the body from harmful substances? (A) hair (B) molecule (C) keratin (D) style (E) beacon (F) organ (G) fur (H) tissue
Student:
F