Answer: The murder of Archduke Franz Ferdinand outraged Austria-Hungary. ... Austria-Hungary was furious and, with Germany's support, declared war on Serbia on July 28. Within days, Germany declared war on Russia—Serbia's ally—and invaded France via Belgium, which then caused Britain to declare war on Germany.
The political promise that made Mussolini and his Fascist Party popular in the 1920s was that he promised that he would restore order in the country. The correct answer is D.
