A lift has a maximum capacity of 20 bundles each having a weight of $\(x \mathrm{lb}\)$ or 30 bundles each having weight of $\(y \mathrm{lb}\)$. If a person puts 12 bundles each of weight $\(y \mathrm{lb}\)$, then maximum of how many more bundles of weight $\(x \mathrm{lb}\)$ can be put inside the lift?

(A) 4
(B) 8
(C) 10
(D) 12
(E) 18