figure shows, in cross section, two solid spheres with uniformaly distributed charge throughout their volumes. Each has radius R. point P lies on a line connecting the centres of the spheres, at radial distance r/2.00 from the centre of sphere 1 . If the net electric field at point P is zero what is the ratio `q_(2)//q_(1)` of the total charges ?
A. `9/8`
B. `6/5`
C. `2/5`
D. `8/9`
