Determine $p$ such that the equation $x^{2}+5px+16=0$ has no real roots.

  • A
    $-\frac{4}{5} < p < \frac{4}{5}$
  • B
    $-\frac{8}{5} < p < \frac{8}{5}$
  • C
    $p < -\frac{4}{5}$ or $p > \frac{4}{5}$
  • D
    $\text{None of these}$

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