Final answer:
A service is not a tangible item and cannot be measured in quality. It requires customer satisfaction, and it cannot be returned.
Step-by-step explanation:
A service is not a tangible item and cannot be measured in quality. Therefore, statement 2) It is a tangible item is incorrect. On the other hand, customer satisfaction is essential for a service to be successful. If customers are not satisfied with the service they receive, they are less likely to use it again or recommend it to others. Hence, statement 3) It does not require customer satisfaction is also false. Lastly, since services are not physical objects, they cannot be returned in the same way that goods can. This makes statement 4) It cannot be returned true.