If $p$ and $q$ are respectively the global maximum and global minimum of the function $f(x) = x^2 e^{2x}$ on the interval $[-2, 2]$,then $p e^{-4} + q e^4 =$

  • A
    $0$
  • B
    $4 e^8$
  • C
    $4$
  • D
    $4 e^8 + 1$

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