Six vectors $\vec{a}, \vec{b}, \vec{c}, \vec{d}, \vec{e}$ and $\vec{f}$ have the magnitudes and directions indicated in the figure. Which of the following statements is true?

• A

  $\overrightarrow{\mathrm{b}}+\overrightarrow{\mathrm{e}}=\overrightarrow{\mathrm{f}}$
• B

  $\vec{b}+\vec{c}=\vec{f}$
• C

  $\vec{d}+\vec{c}=\vec{f}$
• Correct answer
  D

  $\overrightarrow{\mathrm{d}}+\overrightarrow{\mathrm{e}}=\overrightarrow{\mathrm{f}}$

Hence, the correct answer is option: 'D'.