Eleven-month-old Jenny looks at her toy golf club, grasps it tightly, and visually inspects it. She then uses the toy golf club to bring another toy within reach. In the context of Piaget's theory of infant development, Jenny is in the substage of the sensorimotor stage.

Coordination of secondary circular reactions

Explanation:

According to theory of Piaget, coordination of secondary circular reactions is the reaction in which child tends to repeat action to gain response from the environment along with reflexes of their own body.They involve objects from environment and self for performing any action.

According to the question,Jenny is displaying coordination of secondary circular reactions  as she is inspecting toy by grabbing it ,using other toys to reach intended toy etc which involved other object and her actions to complete goal.

answer; ///i believe the correct answer is (b) the writing of the ancients who lived in india after the indus valley inhabitants died out;