Werner von Siemens
None of the others were industrialists.
C because it's a monarchy basically there's only one ruler
I am going to go ahead and say that your answer is C because regions can end for many reasons and most of which I'm certain of which are affected by the physical characteristics of the region.
I hope that this helps. :)
Something different.......................
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I believe the answer in the blank would be “in a different way”