Answer:
The correct answer would be Functionalist perspective. The belief that conformity to a single language helps to unify members of a society reflects the Functionalist Perspective of Sociological Perspective.
Step-by-step explanation:
According to the Functionalist Perspective, Society is a complex system, in which different parts work together to support stability, firmness, steadiness, strength, solidarity, etc. This perspective generates the generalized view of the society. Society is seen through macro level orientation. Social structure are also taken into an account in this perspective which shape the society as a whole.
In this approach, all each and every aspect of the society is considered and seen interdependent and hence they work together towards a better society.
The simplest example to understand this perspective is that the Government of a country is responsible for providing quality education, medical facilities etc to the public equally. In turns it is also the responsibility of the citizens or public to pay taxes. Thus all aspects are somehow interdependent with each other.