影响技术价格的因素不包括( )。

A．成本
B．预期利润
C．技术开发和使用风险
D．税金

Which of the following is true about the WBS:

A) The WBS is another term for the Gantt chart.
B) Each descending level of the WBS represents an increasingly detailed definition of the project work.
C) Work not in the WBS is usually defined in the scope statement of the project.
D) The WBS shows only the critical path activities.