Two short dipoles $\mathrm{p}\hat{\mathrm{k}} \mathrm{and} \frac{\mathrm{p}}{2}\hat{\mathrm{k}}$ are located at (0,0,0) and (1 m, 0, 2 m), respectively. The resultant electric field due to the two dipoles at the point (1 m, 0, 0) is

• A

  $\frac{9\mathrm{p}}{32{\mathrm{\pi \epsilon }}_0}\hat{\mathrm{k}}$

• B

  $\frac{-7\mathrm{p}}{32{\mathrm{\pi \epsilon }}_0}\hat{\mathrm{k}}$

• C

  $\frac{7\mathrm{p}}{32{\mathrm{\pi \epsilon }}_0}\hat{\mathrm{k}}$

• D

  none of these