. Which type of norms are considered to be necessary for the welfare of society?

A. folkways

B. informal norms

C. formal norms

D. mores

c.formal norms

Explanation:Mores: are norms deemed highly necessary to the welfare of a society, often because they embody the most cherished principles of a people. Folkways: are noms governing everyday behavior whose violation raises comparatively little concern.Norms are the established standards of behavior maintained by a society. To be considered a norm, these social rules must be shared and understood by a large number of people. ... Laws are an example of formal norms.