Acollege professor engages in preparatory work in her office alone. this illustrates what sociologist erving goffman called behavior.

The answer is Backstage Behavior.

Explanation:

How we act back stage is liberated from the desires and standards that shape our conduct when we are front stage. Being at home rather than out in broad daylight, or at work or school, is the clearest boundary of the contrast among front and back stage in social life. Given this, we are regularly more loose and agreeable when back stage, we let our protect down, and we may be what we consider our uninhibited or "genuine" selves. We push off components of our appearance required for a front stage execution, such as swapping work garments for easygoing garments and lounge-wear and perhaps change the manner in which we talk and comport our bodies.

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answer; a cost benefit analysis;