下图为患红绿色盲的某家族系谱图，该病为隐性伴性遗传，其中7号的致病基因来自

A．1

B．2

C．3

D．4

At the end of the closing process group, （）.

A．it is verified that the defined processes are completed within all the process groups to close the project phase

B．it is determined that the product of the project is completed satisfactorily

C．project management plan is written off by the project sponsor

D．new change requests are initiated as required