The attitudes that Ryan's customers develop after they have purchased his yearly lawn care service will become the basis for determining whether they renew each year. He needs to demonstrate the dimension of service quality by showing consistently well-maintained yards with neat, professional personnel.

tangibles

Explanation:

In this situation, Ryan needs to demonstrate the tangibles dimension of service quality. This refers to the physical appearances of the service that he is providing, all of the things that the client can see and touch that will increase their positive outlook on Ryan and his business. In this case being the well-maintained yards, clean equipment, professional-looking employees, etc. These tangible factors will convince the clients to renew their subscription.