Three vectors $\vec a$,$\vec b$,and $\vec c$ satisfy the relations $\vec a \cdot \vec b = 0$ and $\vec a \cdot \vec c = 0$. The vector $\vec a$ is parallel to:

  • A
    $\vec b$
  • B
    $\vec c$
  • C
    $\vec b \cdot \vec c$
  • D
    $\vec b \times \vec c$

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