[Solved] Why are varnishes used? A) Reduce leakage around margins and walls of the restoration-tooth interface B) Insulate the pulp from deep or large restorations C) Stimulate the formation of reparative dentin D) Function as a therapeutic base Pornographic Films: Visual material intended to arouse sexual excitement through explicit depictions of sexual acts. Modeling: A learning process observed in social learning theory where individuals learn behaviors, attitudes, and values through observing others. Human Motivational Forces: Intrinsic and extrinsic factors that influence a person's behavior and actions towards achieving a goal. Sigmund Freud: Sigmund Freud was an Austrian neurologist and the founder of psychoanalysis, a clinical method for treating psychopathology through dialogue between a patient and a psychoanalyst.