[Solved] Which of the following types of service transactions is most likely to require the proportional performance method of revenue recognition based on the seller's direct costs to perform each act? A) Processing of monthly mortgage payments by a mortgage banker B) Providing lessons,examinations,and grading by a correspondence school C) Providing maintenance services on equipment for a fixed periodic fee D) Delivering freight (by a trucking firm) Erikson: Erik Erikson, a developmental psychologist known for his theory on the psychosocial development of humans. Gender Roles: Socially constructed roles, behaviors, activities, and attributes that a given society considers appropriate for men and women. Cultural Stress: The stress experienced by individuals who are exposed to a new and different culture, leading to feelings of confusion and anxiety. Erotic Desires: Deep-seated feelings and fantasies that evoke a longing for sexual intimacy and experiences.