Mario is interested in starting a service-based business because he knows the limitless reach that services can potentially have. Specifically, Mario wants to sell a type of service that can be sold an infinite number of times to anyone across the globe. What type of service is Mario most likely interested in starting a business in?

Mario is most likely interested in starting a digital service-based business. Digital services have the potential to reach customers all over the world without any physical boundaries. Some examples of digital services include online courses, virtual consultations, graphic design services, web development, copywriting, social media management, and more. These types of services can be easily replicated and sold to multiple customers, making them a scalable business opportunity for Mario.