In the circuit shown in fig. some potential difference is applied between A and B. The equivalent resistance between A and B is

In the circuit shown in fig. some potential difference is applied between A and B. The equivalent resistance between A and B is R.

A. No current flows through the `5-Omega` resistor
B. `R=15Omega`
C. `R=12.5Omega`
D. `R=18/5Omega`

In the circuit shown in fig. some potential difference is applied between A and B. The equivalent resistance between A and B is R.