A Well-Known Restaurant Asked Its Customers to Evaluate Its Service

A well-known restaurant asked its customers to evaluate its service quality by filling out a questionnaire.The analysis of the questionnaire showed that the restaurant scored below the zone of tolerance on the tangibles dimension.This implies that the customers were not happy with the:

A) employees' ability in performing a service.
B) knowledge and courteousness of the employees.
C) attitude of the manager.
D) facilities provided by the restaurant.
E) attention provided to them by the employees.