It takes longer time to travel by river is one of the major reasons that the inland waterway system was unable to compete with other forms of transportation.

依据《中华人民共和国建筑法》，建筑工程勘察、设计施工的质量必须符合国家有关建筑工程安全标准的要求，具体管理办法由( )规定。

A．建设单位

B．施工单位

C．监理单位

D．国务院