Last week, only two people came to look at the house,          wanted to buy it.   [      ]

A. none of them      

B. both of them      

C. none of whom    

D. neither of whom

某大型群体工程项目的施工任务分期分别发包给若干个承包单位时，该项目的施工总进度计划应当由( )负责编制。

A．施工总包单位

B．施工联合体

C．监理工程师

D．工程业主