An ellipse is drawn by taking a diameter of the circle (x - 1) + y = 1 as its semi-minor axis and a diameter of the circle x2 + (y - 2)2 = 4 as its semi-major axis. If the centre of the ellipse is the origin and its axes are the coordinate axes, then the equation of the ellipse is
Semi minor axis b = 2
Semi major axis a = 4
Equation of ellipse = x2/a2 + y2/b2 = 1
The correct option is D.