I'll first explain what the non-aggression pact was. It was an agreement that the Soviet Union and Germany would take no military action against each other. To answer your question it is B. The pact was to make sure he could safely attack Poland.
In order for me to answer this question I would need to know who the narrator is. Give more details.
The Spanish-American War was notable not only because the United States ... Spain had dominated Central and South America since the late fifteenth century. ... of additional naval bases in the Pacific Ocean, reaching as far as mainland Asia. ... best known part of the battles, but in fact, several African American regiments
Answer: The federal government and the majority of states have income taxes, but their rules and rates can vary widely. Federal taxes are progressive, with higher rates of tax on higher levels of income. Some states have a progressive tax system, while others impose a flat tax rate on all income.