The value of \(\frac{{2\left( {{{\sin }^6}\theta \; + \;{{\cos }^6}\theta } \right) - 3\left( {{{\sin }^4}\theta \; + \;{{\cos }^4}\theta } \right)}}{{{{\cos }^4}\theta - {{\sin }^4}\theta - 2{{\cos }^2}\theta }}\)is :

• A. 2
• B. -2
• C. -1
• D. 1