Within what pH range does the human body work?

7.0 to 7.8

The correct answer is Option (3) - 7.0 to 7.8

The human body typically operates within the pH range of: 7.0 to 7.8

The human body maintains a relatively narrow pH range to ensure proper physiological functioning. The pH scale measures the acidity or alkalinity of a solution, with a pH of 7 considered neutral, below 7 acidic, and above 7 alkaline (basic). The optimal pH range for various bodily fluids and tissues varies slightly, but it generally falls within the range of 7.35 to 7.45, which is slightly alkaline. However, certain bodily fluids and compartments may have different pH levels to support specific physiological processes.