实在没辙，我就记答案好了
Which of the following mostlogically completes the passage?
Appendicitis (inflammation of the appendix) is potentially fatal; consequently,patients with symptoms strongly suggesting appendicitis almost have theirappendix removed. The appropriate surgery is low-risk but performedunnecessarily in about 20 percent of all cases. A newly developed internal scanfor appendicitis is highly accurate, producing two misdiagnoses for every 98correct diagnoses. Clearly, using this test, doctors can largely avoidunnecessary removals of the appendix without, however, performing any fewernecessary ones than before, since .
A. the patients who are correctly diagnosed with this test as not havingappendicitis invariably have medical conditions that are much less serious thanappendicitis
B. the misdiagnoses produced by this test are always instances of attributingappendicitis to someone who does not, in fact, have it
C. all of the patients who are diagnosed with this test as having appendicitisdo, in fact,have appendicitis
D. every patient who is diagnosed with this test as having appendicitishas morethan one of the symptoms generally associated with appendicitis
E. the only patients who are misdiagnosed using this test are patientswho lackone or more of the symptoms that are generally associated withappendicitis