Giải hệ phương trình \(\left\{ \begin{array}{l}\frac{1}{x} - \frac{2}{y} = 1\,\,\\\frac{1}{x} + \frac{2}{y} = 2\,\,\end{array} \right.\)?

A. \(\left\{ \begin{array}{l}
x = \frac{2}{3}\\
y = 4
\end{array} \right..\)

B. \(\left\{ \begin{array}{l}
x =  - \frac{2}{3}\\
y = 4
\end{array} \right..\)

C. \(\left\{ \begin{array}{l}
x = 2\\
y = 4
\end{array} \right..\)

D. \(\left\{ \begin{array}{l}
x =  - 2\\
y =  - 4
\end{array} \right..\)