For spherical symmetrical charge distribution, variation of electric potential with distance from centre is given in diagram Given that : `V=(q)/(4pi epsilon_(0)R_(0))` for `r le R_(0) and V=(q)/(4 piepsilon_(0)r)` for `r ge R_(0)`
Then which option (s) are correct :
(1) Total charge within `2R_(0)` is q
(2) Total electrosstatic energy for `r le R_(0)` is non-zero
(3) At `r = R_(0)` electric field is discontinuous
(4) There will be no charge anywhere except at `r lt R_(0)`

Options

A. 1,2 and 3 are correct
B. 1 and 2 are correct
C. 2 and 4 are correct
D. 1 and 3 are correct