If the sides of a triangle are \( \sin \alpha, \cos \alpha, \sqrt{1...

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If the sides of a triangle are \( \sin \alpha, \cos \alpha, \sqrt{1+\sin \alpha \cos \alpha}, 0\alpha\frac{\pi}{2} \), the largest angle is
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(A) \( 60^{\circ} \)
(B) \( 90^{\circ} \)
(C) \( 120^{\circ} \)
(D) \( 150^{\circ} \)
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