A project manager does not have much time to spend planning before the mandatory start date arrives. He therefore wants to move through planning as effectively as possible. Which of the following would you recommend ？（）
A．Make sure you have a completed preliminary project scope statement and then start the WBS.
B．Create an activity list before creating a network diagram.
C．Document all the known risks before you document the high-level assumptions.
D．Finalize the quality management plan before you determine quality metrics.
