A bookstore offered mystery bags each containing 12 books. The Quantity of each type of book was the same in each bag. A shopper bought 3 mystery bags and found 6 books were spy novels. Based on this information, which prediction can the shopper have about mystery bags in the future?

A. There will be 4 more spy novels in 8 bags than in 6 bags.
B. There will be 2 more spy novels in 6 bags than in 4 bags.
C. There will be 1 more spy novel in 9 bags than in 8 bags.
D. There will be 6 more spy novels in 10 bags than in 8 bags.