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In 1993 an interesting study about Friday the 13th was published in the British Medical Journal. Its authors investigated if this mystical date is really dangerous. They compared the ratio of traffic volume to the number of vehicular accidents on two different days throughout several years. What was the conclusion of the study?

A.The number of vehicular accidents is lower on Friday the 13th
B.The results were inconclusive
C.Friday the 13th doesnt have any affect on the number of vehicular accidents
D.Friday the 13th actually affects the number of vehicular accidents
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Answer:D

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