A <em>junta</em> is defined as a small group that controls the government.
It is usually a group of members of the military (but sometimes the political class too) which takes over control of the government by force. Very often, a <em>junta</em> is in power after a revolution.
For example, the <em>Junta Militar de Gobierno</em> (1973-90) was the military dictatorship which replaced President Salvador Allende of Chile after he was overthrown by a coup d'état in 1973.
The correct answer is B.
The systems of alliances that had been constructed, through which the different nations set up relations with some partners, aimed to keep a balance in power forces across the continent. In turn, it managed not to set a balance but to polarize positions, to create to opposite factions.
Most countries had been aligned with one of the groups therefore, when a conflict was triggered, every country participated on it, embodied in a group of allies. The two world wars are the evidence of this.
A benefit for a knight was they where very high on the nobility scale. Knights started at a young age. 7, I believe.
Nine of thirteen states had to approve.