关于background-image属性修饰正确的是( )
Abackground-image:url(top.jpg)
Bbackground-image:top.jpg
Cbackground-image:(url:top.jpg)
Dbackground-image:(top.jpg)
Abackground-image:url(top.jpg)
Bbackground-image:top.jpg
Cbackground-image:(url:top.jpg)
Dbackground-image:(top.jpg)