What BEST explains why consumers borrowed at high rates to purchase publicly traded stocks in the late 1920s?

A. They were confident that the stock market would continue to grow.
B. These investments were insured by the federal government.
C. The banks offered to forgive the debt if the stock market crashed.
D. Stockbrokers were able to deceive lending institutions into providing loans.

A. They were confident that the stock market would continue to grow.