If $\cos \theta = \frac{15}{17}$,then the value of $\operatorname{cosec} \theta + \cot \theta$ is .........

  • A
    $\frac{1}{4}$
  • B
    $\frac{7}{17}$
  • C
    $4$
  • D
    $\frac{7}{8}$

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