A condenser having circular plates having radius `2cm` and separated by a distance of `3 mm`. It is charged with a current of `0.1 A`. The rate at which the potential difference between the plates change is
A. `9xx10^(10)V//S`
B. `1.8xx10^(10)V//S`
C. `2.7xx10^(6)V//S`
D. `2.7xx10^(10)V//S`