Kareem's son, saleem, is fond of a toy car. whenever kareem tries to take the toy car away and hide it behind a vase, saleem immediately tries to look for it and goes behind the vase to get it. in the context of piaget's theory of cognitive development, which of the following can be definitely said of saleem?
a. saleem has used hypothetical-deductive reasoning to locate his toy car.
b. saleem has understood the concept of conservation.
c. saleem has developed object permanence.
d. saleem has used idealistic thinking to locate his toy car.

Saleem has developed object permanence.

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.

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Explanation:

b) to encourage free trade

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