Utilize the input text as a context reference, choose the right relationship between Beachbody and fitness from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Mark is a born fitness enthusiast and is currently working with fitness expert Tony Horton and Beachbody showing people how to stay in shape with the "10-Minute Trainer" program.Mark boasts a list of accomplishments in his professional career.

Answer: industry