Carlson Hotels Worldwide Is One of the World's Leading Hotel

Carlson Hotels Worldwide is one of the world's leading hotel companies with five brands spanning luxury to economy,including Radisson hotels and Country Inns.In the first advertising campaign for Carlson Hotels,its commitment to service was extolled and a loyalty program that allowed guests to earn redeemable points when they stayed at any Carlson Hotel was introduced.This is an example of what type of corporate advertising?

A) Umbrella advertising
B) Cause-related marketing
C) Self-promotion
D) Market prep corporate advertising
E) Corporate identity advertising