Final answer:
The functionalist perspective emphasizes regulating sexual behavior for marital cohesion and family stability.
Step-by-step explanation:
The functionalist perspective, also known as functionalism, stresses the importance of regulating sexual behavior to ensure marital cohesion and family stability. This perspective views the family as an important social institution that plays a key role in stabilizing society. Functionalists argue in favor of social arrangements that promote and ensure family preservation.