A mobile shop must have which of the following?

In the context of operating a mobile shop, it is essential to adhere to the regulations and requirements set forth by cosmetology licensing boards. A mobile shop must have licensed staff to ensure that all services provided comply with state laws and professional standards. Additionally, the requirement for a public restroom is often mandated in many jurisdictions to support hygiene and sanitation needs for both clients and staff during service provision. Lastly, although mobile shops do not need a permanent location in the traditional sense (like a standard salon would), they still are often required to be in compliance with local regulations that may include having a designated location or adhering to specific zoning laws while operating.

Therefore, since having licensed staff, a public restroom, and adherence to location regulations are all critical requirements, the option indicating that all choices are correct accurately reflects the comprehensive needs of a mobile shop. This ensures that customers receive safe and licensed services while maintaining compliance with health and safety regulations.