针对组织内部具体工作问题，在较小范围内和较短时间内实施的计划为（）

A.战略性计划

B.战术性计划

C.战备性计划

D.战斗性计划

E.战役性计划

That's all for today. Now you      go, or if you like you can stay here with us for dinner. [ ]

A. may

B. should

C. will

D. must