Your answer is D. The German Army went through Belgium and made America get involved
By mid-1830s the old order seemed to have reeestablished itself.
The present increase in numbers of the Negro people of the United States grows out of a deep and passion- ate strong desire/formal decision about something to make freedom and (state where all things are equal) a reality "here" and "now." In one sense the (the right to vote, to free speech, to fair and equal treatment, etc.,) movement in the United States is a special American important thing/big event which must be understood in the light of American history and dealt with in terms of the American situation. But on another and more important level, what is happening in the United States today is a significant part of a world development.
Unterseeboots or U-boats. Both are the German word for submarine.