$A$ compound is formed by elements $P$ and $Q$. Atoms of $Q$ are in $ccp$ arrangement. If $P$ occupies all the tetrahedral voids,what is the formula of the compound?

  • A
    $PQ$
  • B
    $PQ_2$
  • C
    $P_2Q$
  • D
    $P_4Q_3$

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