In a Classic Study, Gibson and Walk (1960) Placed Infants

In a classic study, Gibson and Walk (1960) placed infants of various ages on a fabric-covered runway that ran across the center of a device called a visual cliff. What were the findings of this study?

A) Most infants spent an equal amount of time on the "shallow" and "dropped" side of the visual cliff because of their immature depth perception.
B) Most infants spent most of their time on the "dropped" side of the visual cliff because it was novel.
C) Most infants would only cross the visual cliff if encouraged to do so by their mothers.
D) Most infants would not cross the visual cliff, even if encouraged to do so by their mothers.