If a ball that a five-month-old infant is playing with rolls under a chair (and out of sight) , the infant will not look for it. Piaget believed that this occurs because the infant

A) does not understand the concept of roll.
B) has a short attention span.
C) has not developed conservation.
D) has not developed object permanence.

Object Permanence

The realization by infants that objects still exist even when they are out of sight, sound, or touch.

Conservation

The action of preserving, protecting, or restoring the natural environment, natural ecosystems, vegetation, and wildlife.

Attention Span

The duration for which a person is able to concentrate on a particular task or activity without getting distracted.