The "separate but equal" doctrine
1.d. 85%
2.c.Legislators believe that undocumented immigrants should never gain citizenship
3.b.new Mexicans want the state to have more people than Arizona
Roman concrete is very similar to what we use today. It was used to build structures and many buildings. It was revolutionary at the time as not many things were made of something such a concrete. The Romans proved to be much more advanced than other people and a leader in the world at the time.
Roman society was one that constantly pushed romans to be more and more ambitious, to take more, do more and conquer more. Eventually you start stepping on people's toes who are trying to do the same thing, then you have two powerful people fighting for ultimate power (ceaser v. pompey, sulla v. marius, augustus v. marc anthony, etc.). Then there was the Marian reforms which made soldiers beholdened primarily to their general, not the state, for their rewards (usually land after the campaign was finished), couple that with legions frequently going further and further from Rome in the late republic, most Roman soldiers knew and depended on their general, and barely interacted with the state at all. So these generals gradually gained ferociously loyal armies that were closer to them than Rome in general, so they'd be pretty willing to fight for their general against another general, even when it would weaken the state as a whole. Obviously civil wars cause a huge amount of damage to their nation, both in lives and monetary cost. Plus usually whoever won the civil war would then proceed to kill all prominent citizens who even slightly leaned toward the opposing side. After two or three purges like this, many of the prominent families that made rome into a world power were completely in shambles and the bitter rivalries between them made future wars inevitable.
The North industrialized faster than the South because the North had access to waterways to power factories and financial capital to start large businesses. The correct option among all the options given in the question is option "C". The amount of natural resources present in the North was a big factor in regards to the North getting industrialized faster.