For the given circuit of a $PN-$ junction diode,which of the following statements is correct?
- AIn forward biasing,the voltage across $R$ is $V$.
- BIn forward biasing,the voltage across $R$ is $2V$.
- CIn reverse biasing,the voltage across $R$ is $V$.
- DIn reverse biasing,the voltage across $R$ is $2V$.
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