Article Summary Several Hotel Companies Have Begun Catering to Pet Owners by Owners

Article Summary
Several hotel companies have begun catering to pet owners by marketing their pet-friendly policies to pet owners,creating pet-friendly rooms,and offering various hospitality programs and amenities for pet lovers.Klimpton Hotels does not change extra for pets of any size,offers room amenities such as pet beds,food and water bowls,and provide information about pet-friendly attractions in the area.Choice Hotels has over 3,000 pet-friendly locations worldwide and offers travel tips for pet owners.W Hotels accepts pets less than 40 pounds,provides owners with information about local dog parks,and also provides pet beds,food bowls,and ID tags for their 4-legged guests.Travel sites such as TripAdvisor,Expedia,Travelocity,and PetFriendly.net are also joining the trend by helping pet owners identify pet-friendly hotels and offering reviews of various accommodations.
-Refer to the Article Summary.By marketing to pet owners,hotel companies like Klimpton,Choice,and W are trying to set themselves apart from competing hotel companies.This is an example of

A) defending a brand name.
B) blocking entry into the market.
C) legally enforcing a trademark.
D) product differentiation.