There are $n$ observations and all of them are negative numbers. The ascending order of these observations is $x_1, x_2, \ldots, x_n$. If the signs of the first term and last term in that order are changed,then the range of the data is

  • A
    $|x_1| - |x_n|$
  • B
    $|x_n - x_1|$
  • C
    $|x_1| - x_2$
  • D
    $|x_1| - |x_2|$

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