Find the Midpoint of the Line Segment Joining the Points $$( - 5,8,9 ) , ( - 8,9,2 )$$

Multiple Choice

Find the midpoint of the line segment joining the points.
$$( - 5,8,9 ) , ( - 8,9,2 )$$

A) $\left( \frac { 3 } { 2 } , \frac { - 1 } { 2 } , \frac { 7 } { 2 } \right)$
B) $\left( \frac { - 13 } { 2 } , \frac { 17 } { 2 } , \frac { 11 } { 2 } \right)$
C) $( - 13,17,11 )$
D) $( 3 , - 1,7 )$
E) $( 40,72,18 )$