Ashani is 18 months old. When her mom leaves her at the babysitter's house, Ashani cries initially. After a few moments, she stops crying because her mom is "out of sight and out of mind." According to Piaget, Ashani is the the period of cognitive development, and she has not yet developed .

The correct answer is sensorimotor, preoperational

Sensorimotor system. This term is used to coordinate different motor control processes. Movements that can only be realized initially with the activation of the highest level (cortex), become increasingly automated.

Preoperative thinking is the stage of cognitive development that the child goes through between 2 and 7 years old. It was the psychologist Jean Piaget who developed the knowledge of the evolution of human thought from birth.

d - failures.

the only attempted british colony in north america before 1600 was roanoke, virginia, which was a total failure. england claimed several areas, including newfoundland, but made no sustainable attempts to colonize them before 1600.