Step 1: Understanding the Concept:
The question asks about the factors that influence an individual's daily water needs.
Step 2: Detailed Explanation:
A person's water requirement is not a fixed amount and varies based on several factors:
(A) Climate: In a hot and humid climate, a person sweats more to cool down, leading to greater water loss and a higher need for hydration compared to a cold climate.
(B) Activity: Physical activity and exercise increase sweat rate, requiring increased water intake to replenish lost fluids. A sedentary person needs less water than an active person.
(C) Dietary habits: A diet high in salt, sugar, or protein can increase the body's need for water to process these substances. Conversely, eating water-rich foods like fruits and vegetables can contribute to hydration.
Since all these factors influence water needs, the correct answer is "All of these".
Step 3: Final Answer:
A person's water requirement depends on climate, activity level, and dietary habits.