Ongoing patterns of behavior that interfere with normal day-to-day life are best characterized as

A) deviant.
B) antisocial.
C) dysfunctional.
D) epigenetic.

Dysfunctional

Pertaining to the impairment or abnormal functioning of a bodily system or organ.

Ongoing Patterns

Continuous or regularly recurring behaviors, trends, or activities.

Interfere

To come into opposition, as one thing with another, especially with the effect of altering the activity or condition.