In the circuit shown above, the conductor `XY` is of negligible resisance. Then

Options

A. current will flow through `XY` if `varepsilon_(1)!=varepsilon_(2)`
B. current will flow through `XY` if `(varepsilon_(1))/(R_(1))!=(varepsilon_(2))/(R_(2))`
C. current will flow through `XY` if `(varepsilon_(1)+varepsilon_(2))/(R_(1)_+R_(2))!=(|varepsilon_(1)-varepsilon_(2)|)/(R_(1)-R_(2))`
D. no current will flow through `XY`

Answer

D