The answer is D
Hope this helps :)

How did the united states surprise other delegates at the washington naval conference in 1921

Following archduke franz ferdinand's assassination, austro-hungarian leaders: a. aided the ottoman empire in its campaign to keep serbia under its control. b. executed nearly all prominent serbs living in austria-hungary c. threatened to invade serbia if serb leaders did not agree to a set of strict demands. d.. formed an alliance with great britain to protect austria-hungary from future attacks.

Mark each statement if it describes a characteristic that pulled the greek city-states together? national anthem poetry of homer food growth and preparation