At first glance project managers perform the same functions as other managers. That is they plan, schedule, motivate and control. Which activity below is an activity that does not fall under the function of a project manager? O a. Managing a temporary activity O b. Overseeing existing operations O c. Managing a nonrepetitive activity O d. Responsible for time, cost and performance trade-offs O e. Work with a group of outsiders, including vendors and suppliers