A measure of the quantity of matter is: d. mass.
Mass can be defined as a measure of the quantity (amount) of matter in a physical object or a body. Also, the standard unit of measurement of the mass of a physical object or a body is kilograms.
Hence, the quantity of matter stored in an object or body is measured as mass through the use of a scale or balance.
In conclusion, the mass of a physical object or a body is always constant regardless of its location.
Read more: https://brainly.com/question/18320053