Why did commercial centers grow wealthy

What method did party bosses use to maintain the power of their political machines?

Which nonverbal cue most likely indicates that a person is open to a conversation? lack of eye contact crossed arms smiling mouth o monotone voice

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.