Provide an Appropriate Response $( c , y )$ And $( - 5 c , 7 y )$

Multiple Choice

Provide an appropriate response.
-What is the midpoint of the segment joining $( c , y )$ and $( - 5 c , 7 y )$ ?

A) $( - 3 c , 4 y )$
B) $( - 2 \mathrm { c } , 4 \mathrm { y } )$
C) $( - 4 c , 8 y )$
D) $( 2 c , 3 y )$