Obtaining an investment-grade rating will keep the county's future borrowing costs low, protect its already-tattered image, and increase its ability to buy bond insurance.
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AObtaining an investment-grade rating will keep the county's future borrowing costs low, protect
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BTo obtain an investment-grade rating will keep the county's future borrowing costs low, and protect
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CHaving obtained an investment-grade rating will, in keeping the county's future borrowing costs low, protect
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DTo obtain an investment-grade rating would keep the county's future borrowing costs low, protecting
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EObtaining an investment-grade rating, keeping the county's borrowing costs low, would be protecting
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正确答案: A