Answer: Structural-functionalist theory
Explanation:
Structural-functionalist theory is the concept that defines about society being interpreted as a structure which contains interlinked parts so that individual's social stability as well as biological requirement can be maintained.It is denotes functionalism for the complex society of individual.
According to the question, Janet is undergoing structural functional concept because she is depicting about the interconnection of father and mother as two parent model for stability and working of society .