The answer would be C, different economics, because the northern states were going through an economic boom, due to industrialization. The southern states were running on slave labor.
A. Because the politician is writing it on his/her point of view rather then what really is going on and the big picture.
The answer should be A. True. "Old St. Peters" was designed after a Roman Basilica, which was built over the burial site of St. Peter. Peter was the first Christian bishop of Rome. Peter never officially became the pope of Rome, but Catholics recognize him as the first <em />bishop<em> </em>of Rome.
Hope this helps!:)
~Scarlett