"<span>D. the Circus Maximus</span>" is the correct answer. The Circus (which is not at all like the present day definition of a circus) was the only venue fitted with race tracks for the horses.
I'm 100% sure the answer is
Politically
The U.S. had a victory over British and Indian forces in Ontario, Canada, enabling the United States to consolidate its control over the Northwest.
Immediate Cause: Assassination of Archduke Franz Ferdinand
The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, and nationalism) was the assassination of Archduke Franz Ferdinand of Austria-Hungary
The serbs was the ethnic group that was the most brutally to employ the tactic "ethnic cleaning" the murder or forcible removal of ethnic minority from their land.This tactic enabled the force to eliminate civilian support for resistance by eliminating the civilians.