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

（）是计算租金的基础，是构成租金的主要部分。

A、租赁物件成本

B、租赁期间上述成本资金产生的利息

C、出租人在此项交易下的收益

D、其他额外费用