— Are you going to buy a camera?

— Yes. But there are so many kinds that I can't decide _____ to buy. [ ]

A. what

B. which

C. how

D. where

当事人可以对行政机关在政府信息公开工作中的下列哪类行为，提起行政诉讼？（）

A.政府信息公开工作主管部门的监督检查行为

B.监察机关的监督检查行为

C.当事人依法申请公开，行政机关不予公开的行为

D.对政府信息的保密审查行为