The Three Emperors League in 1872 was between Alexander II of Russia, William I of Prussia, and Francis Joseph of Austria-Hungary.
The agreement was renewed in 1881 with Alexander III replacing Alexander II of Russia. William I and Francis Joseph remained as signatories.
C. There are 20 marbles, and 2 of them are green, so your probability of picking out a green one is 1/10. So if you pick lots of marbles and put them back, the probability stays the same. I would say the answer is true.
I reckon B is True, too.
The Germans would provide military and financial support for a Mexican attack on the United States, and in exchange Mexico would be free to annex “lost territory in Texas, New Mexico and Arizona.” In addition, Von Eckardt was told to use the Mexicans as a go-between to entice the Japanese Empire to join the German