Final answer:
An hour of massage therapy is a service, which is the work performed by a professional for someone else's benefit, as opposed to a tangible item you can buy.
Step-by-step explanation:
An hour of massage therapy is considered a service. This is because it involves a massage therapist providing their professional skills to help relax your body, reduce muscle tension, or improve your health through various massage techniques. Unlike a good, which is a tangible item you can purchase and take with you, a service is something performed by someone for the benefit of another.