How did government spending increase from the years of 1939 to 1945?
a. it went from $50 million a year to $200 million a year
b. it went from $90 million a year to $150 million a year
c. it went from $9 billion a year to $100 billion a year
d. it went from $1 billion a year to $10 billion a year

The correct answer for the question that is being presented above is this one: "a. it went from $50 million a year to $200 million a year." Government spending in the United States increased dramatically from the years of 1939 to 1945, because even though the US didn't enter World War II until 1942, the US heavily mobilized for war, which greatly increased GDP.