If $\overrightarrow{\mathrm{A}}=4\widehat{\mathrm{i}}-3\widehat{\mathrm{j}}$ and $\overrightarrow{\mathrm{B}}=6\widehat{\mathrm{i}}+8\widehat{\mathrm{j}}$ then magnitude and direction of $\overrightarrow{\mathrm{A}}+\overrightarrow{\mathrm{B}}$ from +x axis will be

• A

  5, ${\tan }^{-1}\left(\frac{3}{4}\right)$

• B

  $5\sqrt{5}, {\tan }^{-1}\left(\frac{1}{2}\right)$

• C

  10, ${\tan }^{-1}\left(5\right)$

• D

  25, ${\tan }^{-1}\left(\frac{3}{4}\right)$