The vertices of a triangle are $A(-1, 3)$,$B(-2, 2)$,and $C(3, -1)$. $A$ new triangle is formed by shifting the sides of the triangle by one unit inwards. Then the equation of the side of the new triangle nearest to the origin is:

  • A
    $x-y-(2+\sqrt{2})=0$
  • B
    $-x+y-(2-\sqrt{2})=0$
  • C
    $x+y-(2-\sqrt{2})=0$
  • D
    $x+y+(2-\sqrt{2})=0$

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