He's one of those people with a very _______ imagination --- every time he hears a noise he's convinced it's someone breaking in.

A．adequate

B．relevant

C．abundant

D．vivid

在社会政策评估中，整合研究方法是指下列表述的哪种方法( )

A．定量研究方法

B．定性研究方法

C．定量与定性研究方法

D．深入访谈

E．个案研究