Find $( x , y , z )$ If the Midpoint of the Line Segment Joining the Two

Multiple Choice

Find $( x , y , z )$ if the midpoint of the line segment joining the two points $( x , y , z )$ and $( 4 , - 2,4 )$ is $( - 1,3 , - 1 )$ .

A) $( 2,4,2 )$
B) $\left( \frac { 3 } { 2 } , \frac { 1 } { 2 } , \frac { 3 } { 2 } \right)$
C) $( 5 , - 5,5 )$
D) $\left( - \frac { 5 } { 2 } , \frac { 5 } { 2 } , - \frac { 5 } { 2 } \right)$
E) $( - 6,8 , - 6 )$