B. problems could be solved using human reason.
Stalin unified the Soviet Union after the death of Lenin, although it should be noted that this "unification process" involved mass killings and deportations of people Stalin deemed to be enemies of the state.
The correct answer is definitely D, when Japan attacked Pear Harbor.
Wich of what you've got not answer choices
Economic Crisis. The beginning of the Great Depression can be traced to the stock market crash of Tuesday, October 29, 1929 (also known as "Black Tuesday"). The 1920s were a time of increased stock market speculation. ... The depression's immediate impact on Georgia was much like that throughout the nation as a whole.Nov 5, 2007