In order to restore the public's faith in the stock market following its crash in 1929, congress created what organization to create rules and regulations concerning the sale of stock?

The Securities and Exchange Commission

Explanation:

The U.S. Securities and Exchange Commission is an agency of the federal government that holds responsibility for enforcing federal securities laws. Its mission is to "protect investors; maintain fair, orderly, and efficient markets; and facilitate capital formation." One of the commission's main purpose at its inception was to restore the public's faith in the stock market after the crash of 1929.

the three roles stated in the dialogue develop the siblings' personalities.

lloyd's personality looks like a trademarketer

dana's personality is afraid from lloyd's behavior and the oldest sister is a decided person who tries to solve any conflict

this is a good question! i'll do some research and come back when i have the answer!