Find the Midpoint of the Line Segment Whose Endpoints Are $( - 9 , - 9 ) , ( 2,1 )$

Multiple Choice

Find the midpoint of the line segment whose endpoints are given.
- $( - 9 , - 9 ) , ( 2,1 )$

A) $( - 11 , - 10 )$
B) $( - 7 , - 8 )$
C) $\left( - \frac { 7 } { 2 } , - 4 \right)$
D) $\left( - \frac { 11 } { 2 } , - 5 \right)$