A customer returns a used engine claiming it failed after 500 miles. Under ARA's standard warranty policy for used engines, what is the typical coverage period?
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A
30 days or 1,000 miles, whichever comes first
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B
90 days or 4,000 miles, whichever comes first
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C
6 months unlimited mileage
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D
1 year or 12,000 miles, whichever comes first