Which was not a warning sign of tough economic times ahead before the great depression?

big corporations, such as ford, began closing factories and laying off workers.

even with advanced machinery and efficiency, farmers were not very prosperous.

loans the u. s. gave to foreign governments were being used to buy u. s. goods.

stock prices increased as people bought on credit, not because of real investment.

The best and most correct answer among the choices provided by the question is third choice "Loans the U.S. gave to foreign governments were being used to buy U.S. goods."

The Great Depression (1929-39) was the deepest and longest-lasting economic downturn in the history of the Western industrialized world. In the United States, theGreat Depression began soon after the stock market crash of October 1929, which sent Wall Street into a panic and wiped out millions of investors.

I hope my answer has come to your help. God bless and have a nice day ahead!

Is there like something i’m supposed to cite because i don’t see any background information?