The nurse is assessing a postcraniotomy client and finds the urine output from a catheter is 1,500 mL for the 1st hour and the same for the 2nd hour. The nurse should suspect（）

A. Cushing’s syndrome.

B. diabetes mellitus.

C. adrenal crisis.

D. diabetes insipidus.

对概念进行限制和概括的逻辑根据是（）。