How many different words can be formed by jumbling the letters in the word MISSISSIPPI in which no two S are adjacent.

Question

$\begin{array}{1 1}(A)\;8.6C_4.7C_4\\(B)\;6.7.8C_4\\(C)\;6.8.7C_4\\(D)\;7.6C_4.8C_4\end{array} $