Which of the following correctly defines a quart?

A quart is defined as a unit of measure in the U.S. customary system and is equal to 2 pints. This definition is fundamental in understanding volume measurements, particularly when dealing with cooking, liquid measures, or conversions between different units.

In the context of liquid measurement, it's important to know that a pint is further divided into fluid ounces for smaller quantities, hence knowing that 1 pint equals 16 fluid ounces leads to the conclusion that a quart, being double that, consists of 32 fluid ounces. This unit is commonly used in everyday activities such as measuring beverages or ingredients.

This clarity in the definition of a quart as 2 pints is essential not only for practical uses but also for educational purposes in elementary settings, where students begin to learn about measurements and conversions.