Question

What do we conclude if a planet has few impact craters of any size?

Answer 1

The correct answer is B.

Explanation: If the planet has few, that does not mean there is 0, there could be some, we do not know. So A would not be correct. What things could get rid of craters? As far as i'm aware, there is no such thing that can remove, or fill in craters that is a geological process. Anything I can think of would be done by humans.