Find Any Relative Maximum or Minimum Points or Saddle Points $z=f(x, y)=x^{2}+y^{2}+2 x-6 y+3$

Multiple Choice

Find any relative maximum or minimum points or saddle points of the function $z=f(x, y) =x^{2}+y^{2}+2 x-6 y+3$ .

A) saddle point at $(1,3,-3)$
B) relative minimum at (- $1,3,-7)$
C) saddle point at ( $-1,-3,29$ )
D) relative maximum at $(1,-3,33)$