Find the Midpoint of the Line Segment Joining the Points $( 4 , - 1,7 ) , ( - 5,2,2 )$

Multiple Choice

Find the midpoint of the line segment joining the points. $( 4 , - 1,7 ) , ( - 5,2,2 )$

A) ( $- \frac { 1 } { 2 }$ , $\frac { 1 } { 2 }$ , $\frac { 9 } { 2 }$ )
B) ( $\frac { 1 } { 2 }$ , $\frac { 9 } { 2 }$ , $- \frac { 1 } { 2 }$ )
C) ( $\frac { 9 } { 2 }$ , $\frac { 1 } { 2 }$ , $- \frac { 1 } { 2 }$ )
D) ( $\frac { 1 } { 2 }$ , $- \frac { 1 } { 2 }$ ,- $\frac { 9 } { 2 }$ )
E) ( $\frac { 9 } { 2 }$ , $- \frac { 1 } { 2 }$ , $\frac { 1 } { 2 }$ )