Let \( p, q, r \) be three distinct prime numbers, and \( \left|\be...

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Let \( p, q, r \) be three distinct prime numbers, and \( \left|\begin{array}{ccc}-p i & -q i & 1 \\ r^{3} & q i & -1 \\ p q r & 2 q & 2 i\end{array}\right|=x+i y \), then
(a) \( x=-p, y=q \)
(b) \( x=r, y=0 \)
(c) \( x=0, y=-q r \)
(d) \( x=0, y=0 \)
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