Solve the given equations and select the correct answer from the given options.
$I. (x+y)^{3} = 1331$
$II. x-y+z = 0$
$III. xy = 28$

  • A
    if $x < y = z$
  • B
    if $x \leq y < z$
  • C
    if $x < y > z$
  • D
    if $x = y$ or relationship between $x$ and $y$ cannot be established.

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