This is easy, common denominators. Well you know denominators are at the bottom of a fraction, and you know common means the same, so it would be something like
a d
b = b
it's C because,
Nat Turner's Rebellion was a slave ... The state executed 56 slaves accused of being part of the rebellion, and many ... He witnessed a solar eclipse on February 12, 1831 and was convinced that it ... alarm led to whites' attacking blacks throughout the South
Following the German invasion of Poland on September 1, 1939 hundreds of thousands of Jews and other Polish citizens fled eastward ahead of the advancing German army; many refugees found at least temporary safety in Lithuania. Options for escape were limited and required diplomatic visas to cross international borders. One route was through Asia using a combination of permits issued by foreign envoys responding to the refugee crisis: a bogus visa for entrance to the Dutch Caribbean island of Curaçao and a visa for transit through Japan.
Answer:
<em>The were created by men who became wealthy because of the gold-salt trade. They were extremely cunning, extremely lucky, or both. Their wealth gave them power turning them and their descendants into powerful lords of land and people.</em><em>Monarchy is a political system in which supreme authority is vested in the monarch, an individual ruler who functions as head of state. It typically acts as a political-administrative organization and as a social group of nobility known as “court society.”</em><em>However, only three are currently sovereign, while the remaining are sub-national monarchies.</em>
