Detailed Instructions: 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: skin is used for breathing air by frogs, Fact2: Frogs breathe with their lungs and skin., Question: What do frogs breathe with? (A) feet (B) air (C) triceps (D) movement (E) oxygen (F) keratin (G) gills (H) lungs
A:
H