Q: Sharks have as skeleton that contains\nOptions:\n- (A) elastin\n- (B) Epidermis\n- (C) calcium\n- (D) fur and fat\n- (E) marrow\n- (F) strength\n- (G) all matter\n- (H) collagen
Let's think step by step below.

User
Cartilage is a tough tissue that contains a protein called collagen. Sharks have a cartilage skeleton. Sharks have as skeleton that contains a protein called collagen.
Thus, the answer is (H).
Assistant