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.
Take context from the input text and decide on the accurate relationship between 'Beachbody' and 'fitness' from the options provided.
Options: founded by, industry, original broadcaster, manufacturer