It was "Austria-Hungary’s invasion of Serbia" that was one of the military actions that led to the start of World War I, since this was a blatant violation of sovereignty.
i think the answer will be
B:
an oath of loyalty.
During the Reformation (in the <em>16th century</em>) there were two principal groups fighting each other, Christians and Muslims. There was a huge religious war between Christianity and Islamism in central and southern Europe. Furthermore, in the same central but northwestern Europe, a separation of ideas started with Protestantism, which had different points of view in terms of religious matters that contrasted the ideas of Catholicism. Both conflicts caused many deaths and massacres in the name of God.
Answer:
<em> </em> The answer is B hope this helps :)
Explanation:
