The unit of measurement used in the U.S. Customary System is Pounds, therefore the correct answer is option A
What is a unit of measurement?
A unit of measurement is a specified magnitude of a quantity that is established and used as a standard for measuring other quantities of the same kind. It is determined by convention or regulation. Any additional quantity of that type can be stated as a multiple of the measurement unit.
A length, for instance, is a physical quantity. A defined, predetermined length is represented by the length unit known as the meter.
To promote fairness and openness in trade, weights and measures are frequently a topic of governmental regulation.
Since The unit of measurement used in the U.S. Customary System is Pounds, therefore the correct answer is option A
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