洁身自好，遵守性道德，提倡安全性行为属于性病干预策略的（）

A.一级预防

B.二级预防

C.三级预防

D.原级预防

E.综合预防

Having the client assist in the project planning ______ .

A．is not always recommended since the client does not have adequate knowledge of project management

B．enables better planning since they are familiar with project insights

C．provides only some understanding, but usually the client dealing with the project has only limited authority

D．usually confuses the situation