The 1997 EU Directive on Comparative Advertising

The 1997 EU Directive on Comparative Advertising:

A) Prohibited all forms of comparative advertising.
B) Prohibited comparative advertising in Italy, Belgium, and Luxembourg, but allowed it in all other EU countries.
C) Required advertisers to demonstrate promptly the accuracy of comparative claims.
D) Allowed comparative advertising based on subjective factors.
E) None of the above