The answer would be B) These inventions led to increased business productivity and economic growth
I hope this helps :3
I would say no. The League of Nations although had enjoyed limited success, was a failure because of the selfishness displayed by the European powers. The Treaty of Versailles lacked practicality and ultimately failed at 'addressing the causes of conflict and restoring peace and normality', because there was a World War II.
Congestion (from having sudden population density) and poverty. Crime and slum creation increased too.
hope this helps :)
