14. This simulation uses red dots to represent particles inside an object. As you increase the mass of an object, what
happens to the red dots inside the object and the density of
the object, respectively?
a. The number of red dots decreases, and the density
increases
b. The number of red dots decreases, and the density
decreases
c. The number of red dots doesn't change, but the particles
are more spread out, and the density decreases
d. The number of red dots increases, so the particles become
more closely packed, and the density increases