In the series RC circuit, the voltage across C starts increasing, the moment the circuit is switched to V volts DC. The rate of increase of voltage across C at the instant just after the switch is closed (i.e. at $$t = 0^{+}$$) is

A

$$\frac{R}{CV}$$

B

$$\frac{RV}{C}$$

C

$$\frac{CV}{R}$$

D

$$\frac{V}{RC}$$