The correct answer is B) By 1929, there were almost 24 million automobiles in the country.
The statement about America in the 1920s that is true is "By 1929, there were almost 24 million automobiles in the country."
The first part of the 1920s represented a good period of economic prosperity in America. Indeed, people called this time "the Roaring 1920." People had money to buy many things -mostly on credit- such as cars, forniture, and homes. This created many debts. In the case of cars, US citizens bough approximately 26 million cars and 3 million trucks by 1929, totalizing 29 million vehicles, until the Great Depression hit hard in October 1929, after the US stock market crash.