The key figure behind the Kansas-Nebraska Act was
John Brown
Stephen A. Douglas.
Henry Clay.

B-Stepthen A. Douglas
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its c not d   tell me if that´s correct

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.

c. had saved colonel cresap's family from attack by other native americans.