During the Republic (509-27BCE), the citizens of Rome held a large amount of power. All citizens, were allowed to vote for laws and public officials, and were under the protection of Romes walls and vast armies. If you joined the army, you would often be payed in land, usually some of the land you just helped <span>conquer. The Romans had great deal of power over their citizens they ruled.
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The best option from the list would be that "Public transportation made it possible for factory owners to live in parts of a city that immigrants could not afford," since the immigrant workers during this time were paid very little money and often lived in terrible conditions.
Because of the fact that they needed