Answer:
Pictures (Yes, there is evidence of humans)
chipped stones (no, because it could have been the rock breaking apart because it stated that they have normal patterns)
animal bone with hole (no because any carnivore during the ice age was capable of making holes in bone)
unmarked animal bones (No because if there were human activit, there might be evidence of teeth marks, or markings left by rocks or arrows)
boulders (no because it has stated that a glacier deposits the boulder)
Step-by-step explanation:
hope this helps