The answer would be D. Sustained period during which the nation's total output of goods and services increases
Kim jong-il and roh moo -hyum
Florida had become a burden to Spain, which could not afford to send settlers or garrisons, so the Spanish government decided to cede the territory to the United States in exchange for settling the boundary dispute along the Sabine River in Spanish Texas.
A few things that are similar are first they both trade things, there both powerful countries and yes there both lands in Africa ;). A few differences are the physical land, the culture government, the people, a lot of others things I'm sure if you put your mind to it you can figure out.