Johnny continues to search for his ball after it has rolled out of sight; however, he is sure that all four-footed animals are dogs, regardless of whether they bark or meow. According to Piaget, Johnny has probably reached the stage of cognitive development.

Preoperational

Johnny has developed object permanence, but is still using assimilation when it comes to recognizing the schema for "dog." Instead of accommodating the schema for "dog" to include only a certain type of four-legged animal, they are assimilating all four-legged animals into the schema. All of these traits are part of Piaget's preoperational stage of cognitive development.

the first one is d and the second a

would it be plagiarism to copy and paste off of here? ?