The leader of the Senate is the either the or

How was classical persia's extensive network of roads important to its civilization?

Which of the following world and national events led to a new view of people with disabilities in the us:     a.  world war i and ii veterans with disabilities returned home after the wars.b.  john f. kennedy was elected president and had a sister with a disability.c.  the civil rights and feminist movements.d.  all of the above.

Based on this map, approximately how far did the songhai empire stretch east tward into the interior from the coast