<span>The correct option is C. Towns grew around factories and specific industries.
</span>This is becasue the factory system concentrated workers in towns, because the new factories had to be located near water sources and transportation systems(alongside waterways,railways). This trend <span>often led to crowded, substandard housing for the workers</span>
Nationalism played an important role in unification in
countries like Italy and Germany because it had helped them free their countries
from different monarchies. Mazzini was able to unify Young Italy after the Fascist movement where members wore black shirts while for Germany,
Garibaldi and his movement wore red.
