Is Dark Energy Responsible for the Expansion of the Universe

Multiple Choice

Is dark energy responsible for the expansion of the universe?

A) No. The expansion would happen without dark energy, but dark energy is causing the expansion rate to decrease.
B) Yes. Dark energy is currently the driving force in the universe's expansion.
C) No. Dark energy is only responsible for the observed rapid motions of stars within galaxies.
D) No. The expansion would happen without dark energy, but dark energy is causing the expansion rate to increase.
E) No. The dark energy has no effect on the expansion.