What led to the rise of dictators in Europe and Asia?

Depression and economic struggle.

Explanation:

After the first world was much of the world was in shambles. People where poor and starving.  This is the perfect opportunity for a dictator to come along and say they can fix all of their problems and suddenly gain a ton of support.

Hope this answer helps :)

the graph shows the spread of railways in the 1800s.

based on the graph, the conclusion that can be drawn about germany is answer d)   by 1880, germany had more rail lines than great britain and russia.