giving brainleist, 10 points. hurry

Put the events of the cuban missile crisis in the correct sequence

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 was one major cause of worldwide conflict during the first decade of the 21st century?