疑惑：GWD1-22

City Official:  At City Hospital,
uninsured patients tend to have shorter stays and fewer procedures
performed than do insured patients, even though insured patients, on
average, have slightly less serious medical problems at the time of
admission to the hospital than uninsured patients have.  Critics of the
hospital have     concluded that the uninsured patients are mot receiving proper medical care.  However, this conclusion is almost certainly false.  Careful
investigation has recently shown two things:  insured patients have
much longer stays in the hospital than necessary, and they tend to have
more procedures performed than are medically necessary.

In the city official’s argument, the two boldface portions play which of the following roles?

A.      The
first states the conclusion of the city official’s argument; the second
provides support for that conclusion.

B.      
The first is used to support the conclusion of the city official’s
argument; the second states that conclusion.

C.      
The first was used to support the conclusion drawn by hospital critics;
the second states the position that the city official’s argument
opposes.

D.      The
first was used to support the conclusion drawn by hospital critics; the
second provides support for the conclusion of the city official’s
argument.