Emma works for a software engineering consulting company, and her boss holds expert power. Which of the following accurately describes the expert form of power that Emma's boss holds?

Emma's boss has power over her beca$$se of the company's organizational structure and hierarchy

Emma's boss has power over her because she looks up to her boss as a career mentor

Emma's boss has power over her because her boss knows how how to fix bugs and offer advanced tech support to customers, and she does not have that experience or knowledge

Emma's boss has power over her because her boss may give her a raise if she does well in her position.