Which Information Is Most Important for the Nurse to Report

Which information is most important for the nurse to report to the health care provider about a patient who has been using varenicline (Chantix) ?

A) The patient continues to smoke a few cigarettes every day.
B) The patient complains of headaches that occur almost daily.
C) The patient complains of new-onset sadness and depression.
D) The patient says, "I have decided that I am not ready to quit."