A store owner applies a 20\% discount on the tag price for all products. For each item purchased beyond 5 of the same product, he applies an additional 25\% discount on the discounted price. (He does not apply the second discount to the first 5 items.)
A customer who buys 8 items of a product with a tag price of 15 TL from this store pays how much?\\
A) 81\\
B) 83\\
C) 84\\
D) 85\\
E) 87