Answer:
The correct answer is option - D. Age.
Explanation:
Water is an essential part of the body and there is a continuous requirement of water in the body to perform various kinds of functions. The water intake depends on several factors such as gender, body composition or physique of an individual, and activity level of an individual.
More an individual is active and performs physical activity higher the water intake will be, similarly in body composition. Men need more water than females in normal conditions.
Thus, the correct answer is option D. Age.
