The immediate cause of World War I that made the aforementioned items come into play (alliances, imperialism, militarism, nationalism) was the assassination of Archduke Franz Ferdinand of Austria-Hungary. When Russia began to mobilize due to its alliance with Serbia, Germany declared war on Russia.
The region also had many sizable towns. Thus, northern Italy was urban while the rest of Europe was still mostly rural. Since cities are often places where people exchange ideas, they were an ideal breeding ground for an intellectual revolution.
<span>The "Holocaust" refers to the period from January 30, 1933, when Hitler became Chancellor of Germany, to May 8, 1945 (V-E Day), the end of the war in Europe.</span>
It is B, George Washington.