Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be the one having to due with the Middle ages "transitioning" into the Renaissance, since this is dealing with parts of history in discrete, compartmentalized periods of time.</span>
A. hispaniola (border of haiti and dominican republic)
1) Territorial changes of Germany, Poland and some other countries: Germany lost big parts of land, Poland was "moved" west.
2) The Cold War: resulted from a disagreement of the winners over what should happen to Germany.
The assassination of Franz Ferdinand, the archduke of Austria-Hungary.