At preschool,4-year-old Mark rarely joins his peers at play.Instead,he tends to carefully observe his classmates as they transition from one play center to the next.According to Mildred Parten,Mark is engaged in _____ play.

A) solitary
B) onlooker
C) parallel
D) associative

Mildred Parten

A researcher known for her work on the social development of children, particularly in terms of play.

Onlooker Play

A form of play where a child watches other children play but does not join in, often used to learn social cues.

Solitary Play

A form of play where a child plays alone, using their creativity and imagination without interacting with other children.