【单选题】

It can be inferred that the author of the passage considers the application of the label "diseased" to a patient to be
A．(A) often inhumane and rarely necessary

B．(B) unrelated to the actual study of disease taxonomy
C．(C) often necessary but undesirable in certain cases
D．(D) a superficial approach to the patient's health
E．(E) too difficult to be done with accuracy