【单选题】

In roiling wave planning:
A．Focus is maintained on long-term objectives, allowing near-term objectives to he roiled out as part of the ongoing wave of activitie

B．The work to be accomplished in the near term is planned in detail at a low level of the WB
C．The work far in the future is planned in detail for WBS components that are at a low level of the WB
D．A wave of detailed activities is planned during strategic planning to ensure that project milestones are achieve