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In the circuit shown below, the network $\mathrm{N}$ is described by the following $Y$ matrix:

$Y=\left[\begin{array}{cc}0.1 \mathrm{~S} & -0.01 \mathrm{~S} \\ 0.01 \mathrm{~S} & 0.1 \mathrm{~S}\end{array}\right]$. The voltage gain $\frac{V_2}{V_1}$ is

1. $1 / 90$
2. $– 1 / 90$
3. $– 1 / 99$
4. $– 1 / 11$