The following was an effect of segregation in cities in the late 1800s: the formation of enclaves.
Enclaves, according to Google, are a portion of territory surrounded by a larger territory whose inhabitants are culturally or ethnically distinct. The late 1800s was characterized by the arrival of many immigrants to the United States. Ethnic segregation, therefore, led immigrants to move to the "suburbs" creating enclaves. An example of this during the 19th century was the Irish in Boston. In fact, ethnic segregation was high in rural areas and immigrants were more comfortable living near urban factories and close to other immigrants.
The answer is c hope this helps
It was to capture the Holy Land from Islamic rulers.
I believe it's A.
The Muslims did control Jerusalem for a time, and I believe that they forced the Christians out of it.
Also the Crusaders did sack Constantinople when they were not allowed in by the government there.
I don't know what D is but I'll assume that it is true because I think A is false.
The defining moment in Greek history is the Persian Wars.