An electric dipole of moment $\overrightarrow{\mathrm{p}}=(-\hat{\mathrm{i}}-3\hat{\mathrm{j}}+2\hat{\mathrm{k}})\times {10}^{-29} \mathrm{C}.\mathrm{m}$ is at the origin (0, 0, 0). The electric field due to this dipole at $\overrightarrow{\mathrm{r}}=\hat{\mathrm{i}}+3\hat{\mathrm{j}}+5\hat{\mathrm{k}}$ (note that $\overrightarrow{\mathrm{r}}.\overrightarrow{\mathrm{p}}=0)$ is parallel to: