In the given circuit switch $S$ is closed at $t = 0$ . The current $I$ in the figure at time $t$ is
  • A$i = \frac{{\varepsilon {e^{ - t/RC}}}}{{2R}}$
  • B$i = \frac{{3\varepsilon {e^{ - t/RC}}}}{{2R}}$
  • C$i = \frac{{\varepsilon {e^{ - 2t/3RC}}}}{{2R}}$
  • D$i = \frac{{\varepsilon {e^{ - t/RC}}}}{{R}}$
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