理性投资者经济行为的规律特征可综合反映为（）

A.追求收益最大化

B.厌恶风险

C.追求效用最大化

D.追求稳定

There is a man at the reception desk who seems very angry and I think he means making trouble.

A．to make

B．to have made

C．to having made

D．having made