What can a certain protein affect in meat?\nOptions:\n- (A) health\n- (B) piousness\n- (C) stamina\n- (D) retina\n- (E) toughness\n- (F) liveliness\n- (G) saltiness\n- (H) Energy Let's be accurate as possible.
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Cartilage is a tough tissue that contains a protein called collagen. Collagen contributes to meat toughness. A protein contributes to meat toughness.
The final answer: (E).
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