You will be given a definition of a task first, then some input of the task.
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: Cartilage is a tough tissue that contains a protein called collagen., Fact2: Sharks have a cartilage skeleton., Question: Sharks have as skeleton that contains (A) elastin (B) Epidermis (C) calcium (D) fur and fat (E) marrow (F) strength (G) all matter (H) collagen
Output:
H