The Graph Of $f ( x ) = x ^ { 2 } - 4$

Multiple Choice

The graph of $f ( x ) = x ^ { 2 } - 4$ is the graph of y = $x ^ { 2 }$

A) shifted 4 units to the right.
B) shifted 4 units to the left.
C) shifted up 4 units.
D) shifted down 4 units.