[Solved] A cost accountant is developing a regression model to predict the total cost of producing a batch of printed circuit boards as a function of batch size (the number of boards produced in one lot or batch).The explanatory variable is ___. A)batch size B)unit variable cost C)fixed cost D)total cost E)total variable cost Preconscious Mind: Part of the mind that contains information not currently in consciousness but can be easily accessed and brought into awareness. Id: In psychoanalytic theory, the part of the psyche that is the source of instinctual impulses and demands for immediate satisfaction of basic needs. Ego: In psychoanalytic theory, the part of the personality structure that mediates between the demands of the id, superego, and reality, functioning as the executive control. Pornographic Video: Visual content intended to stimulate erotic feelings rather than aesthetic or emotional feelings.