加注液压油最好采用压力过滤加注的原因是什么？

The identification, definition and selection of the project objectives, as well as the best approach to achieving the project objectives, are identified in the （） process of the project and documented in the project （）.

A．initiation (authorization), charter

B．initiation (authorization), scope statement

C．scope definition, scope statement

D．scope planning, charter