I believe that it was mostly to strengthen businesses, or family ties. Marrying into a family that is wealthy, may help the other side of the family. Hope this helps!! :)
I do believe the last statement is the answer to your question.
C; the electoral college was born
Communism - The government will provide what people need and through advances in technology everyone will have an abundance to consume.
Democracy- everything is decided by citizens, who all have an equal say in decisions that impact people in general. The majority wins and everything will be decided and ruled by a majority vote.