The man is too old, and he can't take care of himself. He has to _____ his sons. [ ]

A. babysit

B. look after

C. depend on

建设工程通过建设工程监理的( )，使影响监理目标实现的各方主体有机配合，使监理工作实施和运行过程顺利。

A．组织协调
B．任务分工
C．严格监理
D．组织机构