关于预算的说法正确的是( )。

A．预算与物业实际收支相等
B．资本支出预算是最常用的预算
C．长期预算的详细与准确度高于年度运营预算
D．资本支出预算的目的就是要对每月应向准备基金存入多少资金做出科学合理的预计

Why is it important to have a project charter ？（）

A．It is the collection of all subsidiary project documents.

B．The project charter is the necessary basis for all work packages to be performed.

C．It formally authorizes the project.

D．It tracks the progress of the project.