Dixie Has a Toothache and Has Set Up an Appointment

Multiple Choice

Dixie has a toothache and has set up an appointment with Dr. Gerald, her dentist. She is not looking forward to the trip, but she knows that Dr. Gerald cannot treat her unless she pays him a visit and explains her condition. This scenario illustrates the characteristic of _____ of services.

A) inseparability
B) variability
C) ambiguity
D) perishability