Analyze the implications of the reversible nature of water autoionization on the pH of a solution.

• A. The reversible reaction has no effect on the pH of a solution.
• B. The reversible reaction causes the pH to fluctuate wildly with any change in ion concentrations.
• C. The reversible reaction allows the pH to remain stable despite small changes in ion concentrations.
• D. The reversible reaction only affects the pH at high temperatures.

Answer: (C)