Answer:
A
Both factory work and the interest in sports led to the development of the suburbs.
Your answer is b ok that would be the best answer
For the Greeks (or more particularly the Athenians) any system which excluded power from the whole citizen-body and was not a tyranny or monarchy was described as an oligarchy. Oligarchies were perhaps the most common form of city-state government and they often occurred when democracy went wrong.
The USSR extended its sphere of influence into Yugoslavia and Albania by supporting the communist parties in those countries. Yugoslavia separated from the USSR later on after a fight between those who supported the USSR way of Communism, that is Stalin, and those who supported the socialistic way, that is Tito.