For the Points P and Q, Find the Coordinates of the Midpoint

Multiple Choice

For the points P and Q, find the coordinates of the midpoint of the segment PQ.
- $$\mathrm { P } ( 5,1 ) , \mathrm { Q } ( 4,8 )$$

A) $( 9,9 )$
B) $\left( \frac { 1 } { 2 } , - \frac { 7 } { 2 } \right)$
C) $( 1 , - 7 )$
D) $\left( \frac { 9 } { 2 } , \frac { 9 } { 2 } \right)$