Q: 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").
Fact1: scales are used for protection by scaled animals, Fact2: Generally, reptiles are thought of as being land dwelling animals with scales., Question: Reptiles have what for protection? (A) shells (B) cartilage (C) the skin (D) hair (E) fur (F) scales (G) keratin (H) beaks
A:
F