NEED HELP ASAP!!!!!!! An infant begins smiling and waving her or his arms when she or he sees her mom come into the room. Which stage of Piaget's theory of cognitive development does this reflect?

"Piaget's theory of cognitive development is a comprehensive view of human intelligence's nature and development"
Sensorimotor intelligence, preoperational thinking, concrete operational thinking, and formal operational thinking are the four major phases of cognitive development described by Piaget.
"Each stage is roughly connected with a specific childhood age period."

Within the first two years of a child's existence, the sensorimotor stage takes place.
It is distinguished by the child's discovery of the distinction between themselves and their surroundings.
They'll utilize their senses to learn about themselves and their surroundings at that stage.
A baby, for example, may chuckle or smile because he or she finds something amusing or interesting.

Hence, the correct answer is: sensorimotor stage.

To know more about Piaget's cognitive theory here

https://brainly.com/question/26425192

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