6. what is always true of an object with a lot of mass? a) it has a large volume b) it cannot be a c) it has…

Brief Explanations:

Mass is the amount of matter in an object. Volume is the amount of space an object takes up. Density is mass per unit volume ($\rho=\frac{m}{V}$, where $\rho$ is density, $m$ is mass, and $V$ is volume). An object with a lot of mass doesn't necessarily have a large volume (e.g., a small - dense metal cube), high density (if its volume is also large), and option b seems to be cut - off. An object with a lot of mass contains a lot of matter.

Answer:

d) It contains a lot of matter (assuming the full option d is something like "It contains a lot of matter")