Although We Know Less About Dark Matter in Elliptical Galaxies

Although we know less about dark matter in elliptical galaxies than in spiral galaxies, what does current evidence suggest?

A) Elliptical galaxies probably contain about the same proportion of their mass in the form of dark matter as do spiral galaxies.
B) Unlike the broad distribution of dark matter in spiral galaxies, elliptical galaxies probably contain dark matter only near their centers.
C) Elliptical galaxies probably contain far more dark matter than spiral galaxies.
D) Elliptical galaxies probably contain far less dark matter than spiral galaxies.