If $12 \cot^2 \theta - 31 \csc \theta + 32 = 0$,then the value of $\sin \theta$ is

  • A
    $\frac{3}{5}$ or $1$
  • B
    $\frac{2}{3}$ or $-\frac{2}{3}$
  • C
    $\frac{4}{5}$ or $\frac{3}{4}$
  • D
    $\pm \frac{1}{2}$

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