Using Green's Theorem, Calculate the Area of the Indicated Region $y = 8$

Multiple Choice

Using Green's Theorem, calculate the area of the indicated region.
-The area bounded above by $y = 8$ and below by $y = \frac { 8 } { 25 } x ^ { 2 }$

A) $\frac { 320 } { 3 }$
B) 0
C) $\frac { 160 } { 3 }$
D) $\frac { 80 } { 3 }$