ACE Guaranty RE Changed Its Name to Ace Guaranty Corp

ACE Guaranty RE changed its name to Ace Guaranty Corp to better reflect the scope of its products.Headline "Sometimes a name change can make a big difference." The ad showed photographs of stars who had changed their names and made no mention of what services the corporation offers.This ad is an example of:

A) corporate advertising
B) advocacy advertising
C) advertorials
D) lobbying
E) continuity advertising