Final answer:
A mystery shopper can assess customer service and provide valuable feedback to JetBlue Airlines, Macy's Department Store, and H&R Block. (b) Macy's Department Store.
Step-by-step explanation:
A mystery shopper can be valuable to organizations like JetBlue Airlines, Macy's Department Store, and H&R Block in multiple ways.
In the case of JetBlue Airlines, a mystery shopper can evaluate the customer service experience, assess the quality of in-flight services, and provide feedback on the overall passenger experience.
For Macy's Department Store, a mystery shopper can assess the store's customer service, evaluate the cleanliness and organization of the store, and provide insights on the shopping experience.
Similarly, in the case of H&R Block, a mystery shopper can assess the customer service provided by tax professionals, evaluate the accuracy and thoroughness of tax preparation services, and provide feedback on the overall experience for clients.