Answer:
Option C.
Step-by-step explanation:
Microsystem, is the right answer.
The microsystem is the immediate surrounding of a child. In psychology, the microsystem is a part of a theory known as ecological systems theory. According to this theory, the development of a child can be properly understood by examining the circumstances of the child's environmental impacts. This theory states that the environment around the child has a direct influence on the development of a child. This influence may involve the influence of friends and family.