It is England, the United States and China (A).
Answer:
Congress had exceeded its authority in the Missouri Compromise
Explanation:
The Court ruled in the Dred Scott decision that Congress had exceeded its authority in the Missouri Compromise because it had no power to forbid or abolish slavery in the territories west of Missouri and north of latitude 36°30′.
Close to people of similar ethnicities, cultures, and religions
President Herbert Hoover then ordered the army to clear the marchers' campsite. Army Chief of Staff General Douglas MacArthur commanded the infantry and cavalry supported by six tanks. The Bonus Army marchers with their wives and children were driven out, and their shelters and belongings burned.