Most of the Craters on the Moon Were Formed by

Most of the craters on the Moon were formed by

A) water erosion, followed by evaporation early in the Moon's history, leaving behind the empty basins, the maria, and craters.
B) a nuclear war in which the lunar inhabitants wiped themselves off the face of the Moon.
C) bombardment by interplanetary meteoritic material.
D) volcanic action; the craters are the old calderas of volcanoes.