Figures shows three spherical and equipotential surfaces `1,2` and `3` round a point charge `q`.The potential difference `v_(1)-v_(2)=V_(2)-V_(3)` if `t_(1)` and `t_(2)` be the distance between them ,then
A. `t_(1)=t_(1)`
B. `t_(1) gt t_(2)`
C. `t_(1) lt t_(2)`
D. `t_(1) le t_(2)`
