\(\,{\left( {\frac{1}{2}} \right)^2} + \left| { - \frac{3}{4}} \right| - \frac{{\sqrt {81} }}{{14}}\)
A.\(\frac{-5}{{14}}\)
B.\(\frac{5}{{14}}\)
C.\(\frac{9}{{14}}\)
D.\(\frac{-9}{{14}}\)

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