Books in the clearance section at Reading Central Bookmart cost $6.00 for paperbacks and $12.00 for hardbacks. Which inequality best describes the number of paperback books, p, and the number of hardback books, h, that can be purchased for $53.00 or less?
 A. 
12p + 6h > 53
 B. 
6p + 12h < 53
 C. 
12p + 6h < 53
 D. 
6p + 12h < 53