The resultant of two vectors $\overrightarrow{\mathrm{A}}$ of magnitude $2$ units and $\overrightarrow{\mathrm{B}}$ of magnitude 1 unit is $\overrightarrow{\mathrm{C}}$. If angle between $\overrightarrow{\mathrm{A}}$ and $\overrightarrow{\mathrm{B}}$ is ${60}^0$, then what is the angle between resultant and $\overrightarrow{\mathrm{B}}$

• A

  ${\tan }^{-1}\left(\frac{\sqrt{3}}{2}\right)$

• B

  ${30}^0$

• C

  ${45}^0$

• D

  ${\tan }^{-1}\left(\frac{2}{\sqrt{3}}\right)$