The Earth Possesses Few Visible Craters,and the Moon Possesses Many

The Earth possesses few visible craters,and the Moon possesses many.Why is this?

A) because the Earth formed later than the Moon and therefore hasn't encountered as many meteoroids
B) because the Moon's location in space makes it more likely to be hit by meteoroids
C) because erosion and plate tectonics have removed evidence of past cratering on the Earth
D) because the Earth has a higher average density than the Moon