If $A = \begin{bmatrix} 1 & -3 & 2 \\ -2 & 1 & 3 \\ 3 & 2 & -1 \end{bmatrix}$,then $A^2 \operatorname{Adj} A = $ (in $I$)

  • A
    $21$
  • B
    $-42$
  • C
    $7$
  • D
    $14$

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