How do protein ligand interactions differ between myoglobin and hemoglobin?

• A. Myoglobin uses dissociation constants, while hemoglobin uses association constants.
• B. Hemoglobin binds ligands irreversibly, while myoglobin binds them reversibly.
• C. Hemoglobin exhibits cooperative binding due to its multiple subunits, while myoglobin does not.
• D. Myoglobin has multiple binding sites, while hemoglobin has only one.

Answer: (C)