If the letters of the word ASSASSINATION are arranged at random.Find the probability that four S's come consecutively in the word.

Question

$\begin{array}{1 1}(A)\;\large\frac{3}{143}\\(B)\;\large\frac{2}{143}\\(C)\;\large\frac{4}{143}\\(D)\;\large\frac{9}{143}\end{array}$