There are two urns.Urn A has 3 distinct red balls and urn B has 9 distinct blue balls.From each urn two balls are taken out at random and then transferred to the other.The number of ways in which this can be done is

Question

$\begin{array}{1 1}(A)\;3\\(B)\;36\\(C)\;66\\(D)\;108\end{array} $