[Solved] Which of the following statements about the immune system is TRUE? A) Neutrophils, basophils, eosinophils, and monocytes originate in bone marrow. B) Natural killer cells produce specific antibodies that kill bacteria and viruses. C) Mast cells are derived from monocytes. D) Plasma cells are derived from T lymphocytes. E) Macrophages are derived from neutrophils. Voyeuristic Disorder: A condition characterized by significant personal distress or impairment in social, occupational, or other important areas of functioning arising from a persistent or predominant focus on observing unsuspecting individuals who are naked, in the process of disrobing, or engaging in sexual activity. Sexual Intercourse: A physical activity involving the genital organs of at least two people for sexual stimulation or reproduction. Guilt Feelings: Emotional distress caused by the belief that one has done something wrong or failed to do something right. Transvestite: An individual who dresses in the clothing typically associated with the opposite sex, often for personal or psychological reasons.