The Triple Alliance consisted of Austria-Hungary, Italy, and Germany.
That means that the correct answer is Great Britain, as that nation was not apart of the Triple Alliance. The Triple Alliance lasted from 1882 to 1915. It ended due to Italy entering World War I with the plan of hostility towards Austria-Hungary and Germany.
It would be "price gouging by OPEC" that was especially a significant cause of the 1979 energy crisis that hit America, since America depended heavily on Middle Eastern oil output.