Find the value of the following expression at \[\mathbf{a}\text{ }=\text{ }-\text{ }\mathbf{2}\text{ }\mathbf{and}\text{ }\mathbf{b}\text{ }=\text{ }-\text{ }\mathbf{3}\]. \[{{\mathbf{a}}^{\mathbf{3}}}+\text{ }\mathbf{3}{{\mathbf{b}}^{\mathbf{2}}}-\text{ }\mathbf{3ab}\text{ }+\text{ }\mathbf{5a}{{\mathbf{b}}^{\mathbf{2}}}~~~~~\]

• A.      -75    
• B. -89
• C.  39
• D.  68
• E. None of these