How did a boycott benefit african americans in their quest for equality

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.

What are some effects outside of europe because of world war 1?

Aclaim about history is most likely not valid if it has which of these characteristics?