For series LCR  circuit, wrong statement is

• A

  Applied e.m.f. and potential difference across resistance are in same phase

• B

  Applied e.m.f. and potential difference at inductor coil have phase difference of $\mathrm{\pi }/2$

• C

  Potential difference at capacitor and inductor have phase difference of $\mathrm{\pi }/2$

• D

  Potential difference across resistance and capacitor have phase difference of $\mathrm{\pi }/2$