Final answer:
Mars is an example of a creative boutique, which is specialized in providing highly creative services without encompassing the full spectrum of advertising services such as media buying and research.
Step-by-step explanation:
Mars is a specialized agency that focuses solely on select aspects of advertising and does not involve itself with research, account planning, or television and radio space buying. In this scenario, Mars is an illustration of a creative boutique. This term is used to describe a company that offers specialized and highly creative services to clients without offering a full range of advertising services such as media buying and market research. As a creative boutique, Mars likely has a team of creative professionals including writers and artists that focus on creating the actual content and designs for advertising campaigns.