What Is Thought to Have Caused the Craters on Venus

What is thought to have caused the craters on Venus?

A) Most are volcanic in origin; some are due to meteoritic impacts.
B) As in the case of Mercury, all the craters are due to meteorite impacts.
C) Because meteorites cannot survive passing through the atmosphere of Venus, all craters must be volcanic.
D) Venus has very few craters and their origin is not known.
E) Venus' craters originated during differentiation.