According to Thomas Scheff,most mental illness is

A) the cause of labeling.
B) a type of moral disorder.
C) residual rule breaking.
D) psychological in nature.

Labeling

The process of identifying and naming an individual or group's behavior as deviant or non-normative, often leading to societal or self-stigmatization.

Moral Disorder

A state of confusion or ethical chaos in an individual or society, where conventional values and moral principles are challenged or ignored.