已婚军官与父母不在一地生活（含配偶为独生子女且与岳父母、公婆不在一地生活）的，每两年探望父母一次，假期（）。

A、20天

B、30天

C、40天

D、45天

Scope definition is ______ .

A．the process of developing a detailed project scope statement as the basis for future project decisions

B．determining the responses needed to perform project activities

C．analysis of activity sequence, duration, and resource requirements

D．a written statement identifying the quality standards relevant to the project