\[\frac{\mathbf{Si}{{\mathbf{n}}^{\mathbf{3}}}\theta \mathbf{+co}{{\mathbf{s}}^{\mathbf{3}}}\theta }{\mathbf{Sin}\theta \mathbf{(1-sin}\theta \mathbf{ cos}\theta \mathbf{)}}+\frac{\mathbf{si}{{\mathbf{n}}^{\mathbf{3}}}\theta \mathbf{-co}{{\mathbf{s}}^{\mathbf{3}}}\theta }{\mathbf{sin}\theta \mathbf{(1+sin}\theta \mathbf{cos}\theta \mathbf{)}}\]equals to ________

• A.  2 sin\[\theta \]                                                               
• B.  2\[cos\,\theta \]       
• C.  1                                                                    
• D.  2
• E.  None of these