How many glasses of water does the person drink in a day?

The correct answer indicates that the person drinks 6 to 8 glasses of water a day, which aligns with general health recommendations for hydration. This amount is commonly suggested to ensure adequate fluid intake, supporting various bodily functions such as digestion, circulation, and temperature regulation. Many health organizations recommend aiming for a daily consumption of 6 to 8 glasses as a baseline for maintaining hydration levels, particularly in environments where dehydration is a concern.

Options suggesting lower amounts, such as 2 to 4 glasses or 4 to 6 glasses, may not meet the recommended needs for optimal hydration, especially for an active or average adult. Selecting 8 or more glasses might be seen as excessive for some individuals unless they engage in heavy physical activity or are in hot climates, where higher fluid intake is necessary to prevent dehydration. Thus, the selected answer reflects a balance that is typically sufficient for maintaining hydration without going into the extremes of excessive intake.