Although the Patient Denies Pain,the Nurse Observes the Patient Breathing

Although the patient denies pain,the nurse observes the patient breathing rapidly with clenched fists and facial grimacing.What is the nurse's best response to these observations?

A) "I am glad you are feeling better and have no discomfort."
B) "Where do you hurt?"
C) "What you are saying and what I am observing don't seem to match."
D) "It makes me uncomfortable when you are not honest with me."