In the raisin bread analogy, what does the dough represent?

Astars
Bgalaxies
Cblack holes
Dinterstellar space

According to the steady-state theory, _____.

Adark energy is an important factor
Bthe universe was once very hot and very dense
Cnew matter is constantly being added to the universe
Dthe temperature of the universe has been decreasing steadily for 15 billion years