11. You're managing an interior decoration project, when you've found out that you need to get it done earlier than originally planned. You decide to fast-track the project. This means: A. Starting the project sooner and working overtime B. Assigning more people to the tasks at a greater total cost, especially for activities on the critical path C. Starting activities earlier and overlapping them more, which will cost more and could add risks D. Shortening the durations of the activities and asking people to work overtime to accommodate that.