A museum is using a coordinate grid to map the distances between historical sites. Each unit represents 1 mile. Which pair of points could be used to represent two sites that are 7 miles apart?
(A) (-3,2) and (4,2)
(B) (-3,-5) and (4,-5)
(C) (-9,-2) and (-2,-2)
(D) (-3,-8) and (4,-8)