[Solved] A planned reinforcement application or follow-up activity A)usually strengthens what was learned previously. B)can be a variation of the original activity. C)can attempt another way for children to discover the same learning. D)all of these answers. DSM-5: The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, a handbook used by healthcare professionals in the U.S. and much of the world as the authoritative guide to the diagnosis of mental disorders. Exhibitionists: Individuals who experience a psychological urge to expose their genitals to strangers as a means of sexual excitement. American Psychiatric Association: A leading scientific and professional organization representing psychiatry in the United States, dedicated to the diagnosis, treatment, prevention, and research of mental illnesses. Voyeur: An individual who derives pleasure from watching others when they are naked or engaged in sexual activity, without their knowledge or consent.