In the context of the substages of Jean Piaget's sensorimotor stage of development, which of the following statements is true of the substage known as coordination of secondary circular reactions?
A. An infant develops the ability to use primitive symbols.
B. Infants show the presence of intentionality.
C. Infants manipulate and transform represented events in simple ways.
D. It develops between fifteen and eighteen months of age.
Answer: D
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