What am I missing?

Use the following information to answer questions 1-3. Darwin is a 60-year-old software engineer for Compuswerve, Inc. Recently, the company went through a reorganization process meant to revamp the business and the work it does. The directors want to rework the company as a fresh, hip business with cutting- edge knowledge from young, creative-minded employees. Obviously, Darwin doesn't fit into the directors' vision, so the managers wish to replace him. Sure enough, a few weeks later Compuswerve hires some new employees, and Darwin is offered a severance plan and dismissed. Which of the following, if true, would legally support the company's decision to fire and replace Darwin? Check all that apply. if Darwin was unable to perform the essential functions of his job if the company had fewer than 20 employees O if the company was a private (non-governmental) organization O if Darwin planned to retire in less than five years if there were more highly skilled workers in the organization who could take his place O if Darwin needed a reasonable accommodation to perform his job due to a disability O if Darwin had another job offer elsewhere