I believe it was because they owed money
The triangle stopped first at the the West Indies from Africa where most slaves were pulled off board, then sent on to ports such as New Orleans to be sold. In this context, the closest would be A.
In an indirect democracy, major laws and rules are made by elected representatives. This is because an indirect democracy is essentially a representative democracy. Elected officials represent the people in a representative democracy (indirect democracy), this means that they also make the major laws and rules.
B. a fiefdom.
A fiefdom was land granted to vassals and knights.
I would say C. The Curtain symbolised the ideological conflict and physical boundary dividing Europe into two separate areas.