What are the new vertices of quadrilateral DEFG, if the quadrilateral is translated downward one unit?
A. D’ = (-5,2), E’ = (-3,6), F’ = (5,2), G’ = (3,-2)
B. D’ = (-5,0), E’ = (-3,4), F’ = (5,0), G’ = (3,-4)
C. D’ = (-6,0), E’ = (-4,4), F’ = (4,0), G’ = (2,-4)
D. D’ = (-5,-1), E’ = (-3,3), F’ = (5,-1), G’ = (3,-5)