Find the relative extrema of the function, if they exist.

How do I find the relative extrema of the function and if they exist.

Find the relative extrema of the function, if they exist.85) f ( x ) = -x+ 1x2 + 3x +3A) Relative maximum at (0, 3); relative minimum at -2,3B) Relative maximum at |0,3; relative minimum at (-2, - 1)C) No relative extrema existD) Relative minimum at 0,W / H; relative maximum at -2,W / H