When chlorine is dissolved in water, it reacts to form hypochlorous acid and hypochlorite ions. At pH < 5, chlorine exists in water as

• A. Elemental or molecular chlorine
• B. Remains in the form of hypochlorous acid
• C. Remains in the form of hypochlorite ions
• D. Remains in the form of both hypochlorous acid and hypochlorite ions