What is the evidence that prehistoric cave artists built wood structures to stand on?

Some paintings are too high to be reached from the floor.So if they want to paint high they need to use structures or scaffoldings to reach and the thing they could use to make was wood . This is the evidence that prehistoric cave artists built wood structures to stand on.

Pls mark as brainliest if found helpful

Iwould go with write exactly two extra paragraphs to point out additional information. but the keyword "exactly" throws me off. leads me to believe it's d. go with your gut feeling. either "write exactly two extra paragraphs" or "none of these".