ve Sur Videobusters, Inc. offered books of video rental coupons to its patrons at $47 per book. Each book contained a certain number of coupons for video rentals. During the current period 570 books were sold for $26,790, and this amount was credited to Unearned Rental Revenue. At the end of the period, It was determined that $18,500 worth of coupons had been used by customers to rent videos. The appropriate adjusting entry at the end of the period would be: Multiple Choice Debit Rental Revenue $8,290 and credit Uneamed Rental Revenue $8.290 O Debit Rental Revenue $18,500 and credit Unearned Rental Revenue $18,500 C ) Debit Unearned Rental Revenue $8,290 and credit Rental Revenue $8,290. O Debit Unearned Rental Revenue $18.500 and credit Rental Revenue $18,500