Two identical conducting sphere carrying different charges attact each other with a force F when placed in air medium at a distance d apart. The spheres are brought into contact and then taken to their original positions. Now, the two sphere repel each other with a force whole magnitude is equal to the initial attractive force. The ratio between initial charges on the spheres is
A. −(3+√8) only
B. −3+√8 only
C. −(3+√8) or (−3+√8)
D. + √3
