What contributed mostto the speed with which Nazi Germany occupied Poland?
A. the widespread appeal of anti-Semitic propaganda.
B. the popularity of Hitler's book Mein Kampf.
C. the pacifist policies of the Polish government.
D. the use of military blitzkrieg by German troops.

The tower commission, appointed by president reagan in 1987 to investigate how the iran-contra affair had happened, concluded that most of the blame lay with a. president reagan himself, for careless management of his subordinates b. congress, for poorly drawn legislation that failed to define carefully the role of the president's national security council c. the american people, for failing to pay attention to the conduct of international affairs d. the federal courts, for having allowed excessive power to flow to the executive branch