All of the following were migration patterns during the war except which one?
a.) millions of african americans moved from the south to major centers of war production such as detroit, san diego, and pittsburgh
b.) large numbers of native americans left the reservations during the war years for major centers of war production.
c.) thousands of mexicans migrated north to the united states to obtain farm and railroad work
d.) a significant number of southern women moved to the northern and western regions of the united states to obtain work in the work factories