Answer:
A). Reduced consumer spending and investment spending.
Step-by-step explanation:
'Tight money' policy is elucidated as the contractionary monetary policy adopted by central banks to decrease the money supply in the market which helps in reducing consumer spending and curb inflation in the economy.
As per the question, when the government adopted this 'tight money' policy during the Great Depression, it led to 'a reduction in consumer spending as well as a reduction in spending on investment.' It led to the worsening downturn of the economy as this steep fall in consumer spending decreased the demand significantly, caused major unemployment, and led millions of investors to take their money back, and eventually, it led to the longest-running recession in the modern history. Thus, option A is the correct answer.