The equations of the sides of a triangle are $\mathrm{x}+\mathrm{y}-5=0$, $\mathrm{x}-\mathrm{y}+1=0,$ and $\mathrm{y}-1=0.$then the coordinates of the, circumcenter are 

• A

  $\left(2,1\right)$

• B

  $\left(1,2\right)$

• C

  $\left(2,-2\right)$

• D

  $\left(1,-2\right)$