Answer:
4. was developed in consultation with genetic and fossil evidence.
Explanation:
Scientists have carried out exhaustive studies on the origin of bipedalism and from fossil evidence of more than 200 fossils among them from the Bishop Morotopithecus in which they find a genetic mutation which is closely related to the origin of bipedalism. Bipedalism developed in tandem with the increase in displacement activity over long distances and on the ground.