Suppose $ABCDE$ is a pentagon. The resultant vector of the vectors $\vec{AB}, \vec{AE}, \vec{BC}, \vec{DC}, \vec{ED}$ and $\vec{AC}$ is

  • A
    $3 \vec{AC}$
  • B
    $3 \vec{AD}$
  • C
    $3 \vec{AE}$
  • D
    $2 \vec{AB}$

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