The agreement was the unanticipated fruit of an attempt by the French Foreign Minister, Aristide Briand, to negotiate a bilateral treaty with the United States in which each nation would renounce the use of war as an instrument of policy toward the other.
<span>Before the civil war, slavery expanded in the south rather then in the north because, the north was primarily factories and the south was primarily agriculture. Agriculture required more hands on labor than factories. </span>
I say C. because the entire paragraph is talking about political power.
Answer: Economically the population decrease brought by the Colombian exchange caused a drastic labor shortage throughout America, which lead to the estbalishment of African Slavery on a big scale in the americas.