A project management plan should be realistic in order to be used to manage the project．Which of the following is the BEST method to achieve a realistic project management plan ？（）
A．Sponsor creates the project management plan based on input from the project manage
B．Functional manager creates the project management plan based on input from the project manage
C．Project manager Creates the project management plan based on input from senior managemen
D．Project manager creates the project management plan based on input from the tea
