Graph the piecewise defined function below. Use an open circle to represent a point which is not included and a solid dot to indicate a point which is on the graph.
$$f(x) = \left\{ \begin{array}{ll} 1 & -1 \leq x < 0 \\ 0 & 0 \leq x \leq 1 \\ -2 & 1 < x < 2 \end{array} \right.$$

After you have graphed the function on a separate piece of paper, indicate which of the graphs below matches the graph you sketched. Be sure to pay attention to whether endpoints are open or closed.

Choose the letter A-E of the correct graph ? A B C D E