According to the passage, ______ will narrow the county's financial shortfall.
A.to reduce the number of students
B.to lessen healthcare costs
C.to increase tax rate
D.to qualify a three A bond rating

A.A.to
B.to
C.to
D.to

【参考答案】

C
解析：根据题干关键词financial，shortfall定位到原文最后一段最后一句：If no incre......

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