I would say C, because the smoke from coal consumption emits a large amount of carbon dioxide.
Since we can't do your essay for you, I'll just get you started!
You really want to focus on discussing the diction, and metaphors King use. Also, look at the situation. The circumstances in itself make it powerful, don't you think? =)
One of the main factors that helped unification was the economic and political growth of the West Germany capitalist, through North American resources
.This caused a disappointing population of East Germany, which adopted a socialist regime, causing a migration of people to western Germany.
All this situation caused a great crisis in socialism, so the people pressed the rulers of eastern Germany, who were forced to open negotiations with western Germany for the fall of the Berlin Wall and the reunification of the country
