I would have attended your birthday party last night but for the fact that it ______ at that time. [ ]

A. would rain      

B. was raining  

C. had rained      

D. had been raining

某进口设备的到岸价是100万美元，外汇牌价：1美元＝8.28元人民币，国外运费率6%，国外运输保险费率2.66%，进口关税率22%，进口环节增值税率17%，外贸手续费率1.5%，银行财务费率4‰，则外贸手续费为( )万元。

A．17.73

B．15.15

C．12.42

D．11.69