While German Jugendstil shared common characteristics with French and English art

medieval letters

Explanation: Medieval Letters were written during the medieval period, they often were read aloud in public places and even those that were not well composed. During the Middle Ages, the written letter became a central concern of rhetorical theory. The Medieval societies generally were not primarily municipal, as well as the medieval political structure in particular.

The answer is "social and environmental issues".
In a developing country, populations are generally fast growing, but have a lower standard of living, thus a lower life expectancy.
These areas are also sources of cheap labor for developed countries, so jobs are outsourced TO these countries, not from them.
Finally, economic issues could be prevalent, but these societies usually have lots of jobs available. Hope this helps!