In order to help the student expand his/her knowledge I will help answer the question. This in hope that the student will get a piece of knowledge that will help him/her through his/her homework or future tests.
Services cannot be inventoried, this is a characteristic that can be used to guide the design of service systems. That is because in design organizations is one of the things that they remark. They cannot inventory services. The correct answer is
Services cannot be inventoried.
I hope it helps, Regards.