How much blood does the human body contain?

The human body typically contains a total blood volume that varies depending on several factors, including a person's size, sex, and age, but for the average adult, the accepted range is around 4 to 6 liters of blood. Since 1 pint is approximately 0.47 liters, this translates to about 8 to 12 pints. The correct range of blood volume aligns with the general understanding that an adult has around 6 to 8 pints of blood.

Therefore, the choice indicating 8 to 10 pints provides a range that correctly includes the average blood volume for most adults, making it the most accurate answer.

In contrast, the options indicating less than 8 pints do not fully encompass the average blood volume for all individuals, and those indicating more than 10 pints would be above the typical range and might suggest a misunderstanding of normal blood volume in adults.