He has invested five percent of his ________ in gold.

He has invested five percent of his ________ in gold.
A、account
B、cheques
C、surplus
D、assets
【正确答案】：D
【题目解析】：account账户；cheques支票；surplus盈余，过剩；assets资产
句意：他把百分之五的资产投资在黄金上。