AHSME 1967 Problem 30

A dealer bought $n$ radios for $d$ dollars, $d$ a positive integer. He contributed two radios to a community bazaar at half their cost. The rest he sold at a profit of $8 on each radio sold. If the overall profit was$72, then the least possible value of $n$ for the given information is: $\textbf{(A)}\ 18 \textbf{(B)}\ 16 \textbf{(C)}\ 15 \textbf{(D)}\ 12 \textbf{(E)}\ 11$