The Z-parameter matrix \[\left[ {\begin{array}{*{20}{c}}
{{{\text{Z}}_{11}}}&{{{\text{Z}}_{12}}} \\
{{{\text{Z}}_{21}}}&{{{\text{Z}}_{22}}}
\end{array}} \right]\] for the two-port network shown is

A. \[\left[ {\begin{array}{*{20}{c}} 2&{ - 2} \\ { - 2}&2 \end{array}} \right]\]
B. \[\left[ {\begin{array}{*{20}{c}} 2&2 \\ 2&2 \end{array}} \right]\]
C. \[\left[ {\begin{array}{*{20}{c}} 9&{ - 3} \\ 6&9 \end{array}} \right]\]
D. \[\left[ {\begin{array}{*{20}{c}} 9&3 \\ 6&9 \end{array}} \right]\]
Answer: Option A

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