Answer the Question $( \sqrt { 3 } , - 2 )$

Answer the question.
-The points $( \sqrt { 3 } , - 2 )$ and $( 2 \sqrt { 3 } , 3 )$ are the points at which the diagonal of a square intersects the square. What are the coordinates of the center of the square?
A) $\left( \frac { 5 \sqrt { 3 } } { 2 } , \frac { - 1 } { 2 } \right)$
в) $\left( \frac { 5 \sqrt { 3 } } { 2 } , \frac { 1 } { 2 } \right)$
c) $\left( \frac { 3 \sqrt { 3 } } { 2 } , \frac { - 1 } { 2 } \right)$
D) $\left( \frac { 3 \sqrt { 3 } } { 2 } , \frac { 1 } { 2 } \right)$