In shown circuit, initially capacitor is uncharged. If switch S is closed at t = 0, then initial current through R is :

• A

  $\frac{\mathrm{E}}{\mathrm{R}}$

• B

  $\frac{\mathrm{E}}{2\mathrm{R}}$

• C

  $\frac{\mathrm{E}}{3\mathrm{R}}$

• D

  cannot be determined