From a Chinese bank"s point of view, the currency account which it maintains abroad is known as ______, while a RMB account operated in China for a foreign bank is termed
A.a vostro account...a nostro account
B.a nostro account...a vostro account
C.a mirror account...a nostro account
D.a vostro account...a mirror account
请帮忙给出正确答案和分析,谢谢!