Compare the Graph of the Following Function with the Graph $f ( x ) = | x |$

Compare the graph of the following function with the graph of $f ( x ) = | x |$ .
$$y = \left| \frac { 7 } { 9 } x \right|$$

A) vertical shift of $\frac { 7 } { 9 }$ units up
B) horizontal stretch of $\frac { 9 } { 7 }$ units
C) vertical shrink of $\frac { 7 } { 9 }$ units
D) horizontal shrink of $\frac { 7 } { 9 }$ units vertical shift of $\frac { 9 } { 7 }$ units
E) horizontal shrink of $\frac { 7 } { 9 }$ units