If $\theta$ is the angle between vectors $\vec{A}$ and $\vec{B}$,then what is the value of the product $(\vec{B} \times \vec{A}) \cdot \vec{A}$?

  • A
    $BA^2 \cos \theta$
  • B
    $BA^2 \sin \theta$
  • C
    $BA^2 \sin \theta \cos \theta$
  • D
    Zero

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