Why are prehistoric works of art designated as such?

(2 points)
Responses

Because they cannot be dated.
Because they cannot be dated.

Because they cannot be attributed to a particular artist.
Because they cannot be attributed to a particular artist.

Because they were painted in a cave.
Because they were painted in a cave.

Because the society that created them did not yet possess written language.
Because the society that created them did not yet possess written language.

Because they were created during a time period before the development of written history.