The graph of the quadratic function f is shown in the grid. Which of these best represents the domain of f?

A: y>=4.5

B: All real numbers less than -4 or greater than 1

C: -4<=x<=1

D: All real numbers ​

The graph of the quadratic function f is shown in the grid Which of these best represents the domain of fA ygt45B All real numbers less than 4 or greater than 1 class=