Wang Lin was told about a health care project that provides treatment at half the cost or less,

          the needs of the patient.

A．depend on                                           B．to be depended on

C．depending on                                       D．depended on

Wang Lin was told about a health care project that provides treatment at half the cost ___,

______ the needs of the patient.

A. or less, depended on　　　　 B. or so, depending on

C. or more, depended on　　　　 D. or less, depending to