Choose the correct statement

• A. An aqueous solution of carbonic acid, H₂CO₃, is composed of HCO₃^- and CO₃^2- because it is a strong acid and completely ionizes.
• B. An aqueous solution of carbonic acid, H₂CO₃, is composed of H₂CO₃, HCO₃^- and CO₃^2- because it is a strong acid and completely ionizes
• C. An aqueous solution of carbonic acid, H₂CO₃, is composed of H₂CO₃, HCO₃^- and CO₃^2- because it is a weak acid and partially ionizes
• D. An aqueous solution of carbonic acid, H₂CO₃, is composed of HCO₃^- because it is a weak acid and partially ionizes
• E. An aqueous solution of carbonic acid, H₂CO₃, is composed of CO₃^2- because it is a strong acid and completely ionizes.

Answer: (C)