Find the Centroid of the Region Bounded by the Graphs $$y = 9 - x ^ { 2 } , \quad y = 3 - x$$

Multiple Choice

Find the centroid of the region bounded by the graphs of the given equations.
$$y = 9 - x ^ { 2 } , \quad y = 3 - x$$

A) $\left( \frac { 5 } { 2 } , \frac { 1 } { 2 } \right)$
B) $\left( \frac { 1 } { 2 } , \frac { 5 } { 2 } \right)$
C) $\left( 5 , \frac { 1 } { 2 } \right)$
D) $\left( \frac { 1 } { 2 } , 5 \right)$