I think the answer is C. A march to Washington for civil rights
It was caused by the sharp rise in the price of opium was seized upon by some of the Cohong trading houses and smugglers.
Oldest history of it startin is in Central Asia, it spread by fleas were carrying the disease on rats
Butler technically didn't do anything, it was done by Truman and Bernard Baruch. The final solution is the name given to the order of a mass killing of all the Jews, exterminating by force through gas chambers or shootings, when all else failed they resulted to this.