In the given circuit , `R_1 != R_2` and the reading of the voltmeter is the same, irrespective of whether the switch S is open or closed. Then, which of the following is correct?
A. `I_(R_2) = I_V`
B. `I_(R_1) = I_(R_2)`
C. `I_(R_3) = I_V`
D. none of these
