I believe that d should be false because if both sides wanted to secede, then neither side would have a problem splitting apart and thus there would have been no reason for the Civil War in the first place.
No, feudalism froze the idea of social mobility
Most of the time it is, unfortunately, low education. Rapid population increase isn't too far behind, but if a population lacks education there would be little room for the economy to increase and a rapid population increase would effect problems more associated with resources and living space, depending on the country/area.
I would go with the answers:
The effects of the Reformation were widespread.
Catholicism was still dominant in Europe.
There were many Calvinist centers in France.
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<em>The answers that are incorrect:</em>
Most people in Norway were Catholic.
Because Norway at that time was mostly protestant.
England and Scotland had the most Muslim centers.
Also not true because there weren't many muslims (if there were any there at that time) living in England or Scotland.