Answer:
A. Mass is a measure of the amount of matter in an object, while weight is a measure of the force of gravity on the object.
Explanation:
Mass is also a scalar quantity associated with the amount of atoms and/or molecules that constitutes the object. While weight is a force due to the action of gravity (either on our planet or any other one) and therefore a vector quantity that we routinely use as scalar due to the fact that it is always pointing down (towards the center of the Earth) so we ignore a bit the direction associated with it.
