Adriana and her mother have been playing patty-cake, but mother is now trying to engage adriana in a picture book. adriana wants to play patty-cake again, so she grabs mother's hands and puts them together as if in a clap. adriana is clearly in which stage of sensorimotor development? a. stage four b. stage one c. stage two d. stage three

   A. Stage four

Explanation:  When it comes to sensorimotor development, that is, cognitive development of infants, scientist Piaget has suggested that there are six sub-stages. What Adriana did is talk about the sensorimotor abilities of infants from 8 to 12 months of age. It is a stage in which the infant can, in addition to mimicking certain reactions and movements, coordinate movements and reactions in order to achieve a specific goal. So it begins to be oriented toward a specific goal, not only repeating the movements seen, but coordinating and taking the initiative to reach the desired goal.

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