Answer:
The correct answer is B, wartime production was cut in the demobilization process.
Step-by-step explanation:
During World War I (1914-1918) many countries had their industries working intensely and focused on war efforts. Because of this wartime in many countries was successful and led to the growth of the economy.
When the war ended the natural decline of production caused by the end of the war efforts led to a brief recession in various economies of the world, the US's included.