8. Which use of the word "complicate" and its derivatives is totally medical in its sense?(A) As a doctor, what you need to focus on is a patient's body condition. Don't let considerations of his/her background or status complicate the matter of medical treatment. (B) The patient's medical history is a little bit complicated. He was first misdiagnosed as a victim of appendicitis. When the surgeon was about to perform the removal of appendix, he discovered that this was actually a case of pervasive intestinal cancer. (C) Idiot! Don't you know the due procedure of treating a cut after an operation?! Now the patient suffers the complication of intestinal infection. Can't you keep your job as surgeon simple? (D) We cannot even allow this patient to stay in the emergency room overnight. Do you know what trouble she has got into? I don't want complications for the hospital and its staff.