Let a Denote the Area Enclosed by the Equations $y = x ^ { 2 }$

Multiple Choice

Let A denote the area enclosed by the equations $y = x ^ { 2 }$ and $y = 2 x$ Then A is

A) $\frac { 4 } { 9 }$
B) $\frac { 4 } { 5 }$
C) $\frac { 4 } { 3 }$
D) $\frac { 8 } { 3 }$
E) $\frac { 2 } { 3 }$