根据各级对话内容，从下面提供的5个选项中选出能填入空白处的最佳选项。

A:Would you sign the register please, sirB: Sure. (), does my room have a private bathA:Certainly. Every room in this hotel has a private bath.

A．Thank you

B．It’s my pleasure

C．By the way

D．No, of course not

E．Never mind

将商业保险分为财产保险、人身保险、责任保险和信用保证保险是按照( )不同而划分的。

A．被保险标的

B．保险资金来源

C．保险的实施方式

D．保险责任承担的次序