Angle of Intersection of Two Circles

Q. If the angle of intersection of the circles $x^2+y^2+x+y=0$ and $x^2+y^2+x-y=0$ is $\theta$, then equation of the line passing through $(1,2)$ and making an angle $\theta$ with the y − axis is

1. $x=1$
2. $y=2$
3. $x+y=3$
4. $x-y=3$

Q. If the angle of intersection of the circles $x^2+y^2+x+y=0$ and $x^2+y^2+x-y=0$ is $\theta$, then the equation of the line passing through $(1,2)$ and making an angle $\theta$ with the $y$-axis is

1. $x=1$
2. $y=2$
3. $x+y=3$
4. $x-y=3$