According to the text, what are three biggest mistaken assumptions that a manager or team leader could make? A. Assuming that smaller groups are better, that difference facilitates team process, and that everyone knows how to work as a team member. B. Assuming that group size has nothing to do with work performance, that similarity facilitates team process, and that nobody is a team player. C. Assuming that bigger groups are better, that similarity facilitates team process, and that everyone knows how to work as a team member. D. None of these