Final answer:
The water source is always required to meet peak demand with adequate water pressure, ensuring daily activities are not disrupted and the water supply system functions efficiently.
Step-by-step explanation:
The water source, excluding hot water, must be able to meet peak demand with adequate water pressure. The correct answer is A) Always. Water provision systems, particularly in urban areas, are designed to maintain consistent water pressure even during periods of high demand. This is essential for various daily activities and for ensuring that water supply systems function efficiently. Water utilities employ several mechanisms to maintain water pressure such as pumps, elevated water storage tanks, and pressure regulation systems. They are engineered to accommodate peaks typically experienced in the mornings, and at other times during the day when simultaneous water usage increases.