The Nurse Is Teaching a Student Nurse About Pain Assessment

The nurse is teaching a student nurse about pain assessment scales. Which statement by the student indicates effective teaching?

A) "You cannot use a pain scale to compare the pain of my patient with the pain of your patient."
B) "When patients say they don't need pain medication, they aren't in pain."
C) "A patient's behavior is more reliable than the patient's report of pain."
D) "Pain assessment scales determine the quality of a patient's pain."