You answer would be A or the first option because if they got the same results then it is most likely that they are both correct
Hope it helped! :-)
Ditches were dug either side of the road to allow for drainage. Roman roads tended to be built higher than the level of earth around them – this, again, helped drainage. The bulk of the actual building was done by Roman soldiers. By doing this, the Romans could rely on the gained expertise of the soldiers.
It split the western territories into two because most of the state's in the north did not have slaves but in the south they did .Not only that but also because when the south made the cotton for the clothes they would make in the north and when they would sale it to the south they would have it cost a lot like 2times it was worth so the south had gotten angry over that and the north was annoyed then came the civil war .basically they hated each other then
They used interchangeable parts. This made the mass production possible and caused it to happen.
Search it on history.com i got all my information from there because i had a book report.
