Which is a long-term reason americans kept investing in the stock market after the panic of march 1929?

the federal reserve board did not act on its threat to regulate stock trading and speculation, so people went back to business as usual.

the panic was very brief, and afterward speculation continued, so people thought it was a one-time problem that would not happen again.

charles mitchell's $25 million loan gave them confidence that the market would always be supported by big business and banking.

they were so in debt from buying stocks that the only way they could imagine making that money back was with a big win in the stock market.