The amount of matter in an object is the volume. The correct option is C.
What is the matter?
A material called matter is made up of several kinds of particles, occupies space, and has inertia. The many sorts of particles each have a unique mass and size according to the fundamentals of current physics.
The matter is of three types: solid, liquid, and gas. In gas, the atoms of the matter are very far from each other. In liquid, the atoms are nearer than the liquid. The solid has compact atoms, it is very rigid.
Volume is the amount of space a three-dimensional object takes up. It's different from mass, the mass is the quantity of matter, but the volume of the space occupied by the matter. So the amount of matter in an object will be the volume.
Thus, the correct option is C. Volume.
To learn more about the matter, refer to the below link:
https://brainly.com/question/16614914
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