\(\int\limits_0^{\frac{\pi }{4}} {\dfrac{{\sin \left( {x - \dfrac{\pi }{4}} \right)}}{{\sin 2x + 2\left( {1 + \sin x + \cos x} \right)}}dx} \) bằng:
A.\(\dfrac{{4 - 3\sqrt 2 }}{4}\)
B.\(\dfrac{{4 + 3\sqrt 2 }}{4}\)
C.\(\dfrac{{4 + 3\sqrt 2 }}{3}\)
D.\(\dfrac{{4 - 3\sqrt 2 }}{3}\)