The values of $x$ and $y$ for which the numbers $3 + i{x^2}y$ and ${x^2} + y + 4i$ are conjugate complex can be

  • A
    $( - 2, - 1)$ or $(2, - 1)$
  • B
    $( - 1, 2)$ or $( - 2, 1)$
  • C
    $(1, 2)$ or $( - 1, - 2)$
  • D
    None of these

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