An ellipse is drawn by taking a diameter of the circle (x + 2)² + y² = 9 as its semi-major axis and a diameter of the circle x² + (y - 3)² = 4 as its semi-minor axis. If the center of the ellipse is at the origin and its axes are the coordinate axes, then the equation of the ellipse is:
1
4x² + 9y² = 36
2
9x² + 4y² = 36
3
4x² + 9y² = 144
4
9x² + 4y² = 144