Mientka Publishing Company prices its bestseller Where's Walter? as follows: C(n) \equal{}
\begin{cases}
12n, &\text{if } 1 \le n \le 24\\
11n, &\text{if } 25 \le n \le 48\\
10n, &\text{if } 49 \le n
\end{cases} where n is the number of books ordered, and C(n) is the cost in dollars of n books. Notice that 25 books cost less than 24 books. For how many values of n is it cheaper to buy more than n books than to buy exactly n books?<spanclass=′latex−bold′>(A)</span>3<spanclass=′latex−bold′>(B)</span>4<spanclass=′latex−bold′>(C)</span>5<spanclass=′latex−bold′>(D)</span>6<spanclass=′latex−bold′>(E)</span>8