For sulfuric acid (H2SO4), a diprotic acid, which statement is true regarding its dissociation constants?

• A. It has no Ka values because it is a strong acid.
• B. It has three Ka values, one for each possible dissociation.
• C. It has two distinct Ka values, one for each hydrogen.
• D. It has a single Ka value for both hydrogens.

Answer: (C)