In the following network, the voltage magnitudes at all buses are equal to $1 p.u.$, the voltage phase angles are very small, and the line resistances are negligible. All the line reactances are equal to $j1$ $\Omega.$

If the base impedance and the line-to-line base voltage are $100$ $\Omega$ and $100$ $kV$, respectively, then the real power in $MW$ delivered by the generator connected at the slack bus is

1. $-10$
2. $0$
3. $10$
4. $20$

edited