In some provinces, the Romanised civilisation quickly disappeared after the imperial power of the Romans broke down around______.

A．The importance of advertisement.
B．The society’s great need of advertisement.
C．The origin of advertisement.
D．The prosperity of advertisement.

A．To help international students prepare to enter higher institutions.
B．To help the outstanding students go abroad.
C．To provide work opportunities for graduating students in the community.
D．To help some poor college students earn more money.