The services that a freight forwarder renders may often range from routine and basic tasks such as ( ) or customs clearance to a comprehensive package of services．

A．the providing of services

B．the utilizing of services

C．the booking of space

D．the loading and unloading

有如下SQL语句
CREATE VIEW kh-view AS SELECT 姓名AS客户姓名，账户金额FROM kh执行该语句后产生的视图含有的字段名是( )。

A．姓名、账户金额

B．客户姓名、账户金额

C．姓名、账户金额、职业

D．客户姓名、账户金额、职业