What Is the Distribution of Maria on the Moon's Surface

What is the distribution of maria on the Moon's surface?

A) Maria are largely confined to the hemisphere facing Earth; there is only one small mare on the distant side.
B) Maria are distributed uniformly over the Moon's surface, as expected from random bombardment by debris from space.
C) There are only a few large maria on the Earth-facing side of the Moon but many smaller maria on the far side.
D) The large maria seen on the Earth-facing side of the Moon are matched by equivalent maria at diametrically opposite positions on the Moon, but only the near side has small maria.