Answer:
Saleem has developed object permanence.
Step-by-step explanation:
According to Jean Piaget's theory of Cognitive development, when the children reach the sensorimotor stage, they start to develop the understandings about the objects. By touching and handling the objects they learn that the objects continue to exist when they are away from the eyes. In the above case, Saleem is the child who had developed object permanence. He is aware that if the toy car remains missing from his eyes, he can find it behind the vase.