\(S = \left( {\frac{{\sqrt x + 3}}{{\sqrt x - 2}} + \frac{{\sqrt x + 2}}{{3 - \sqrt x }} + \frac{{\sqrt x + 2}}{{x - 5\sqrt x + 6}}} \right):\left( {1 - \frac{{\sqrt x }}{{\sqrt x + 1}}} \right)\)
A.\(S= \frac{{\sqrt x  - 1}}{{\sqrt x  - 2}}\)
B.\(S= \frac{{\sqrt x  + 1}}{{\sqrt x  - 2}}\)
C.\(S= \frac{{\sqrt x  + 1}}{{\sqrt x  + 2}}\)
D.\(S= \frac{{\sqrt x  - 1}}{{\sqrt x  + 2}}\)

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