The main reason why the twenties are sometimes called an "age of prosperity", especially in the United States, is that "<span>A.Incomes throughout the United States grew and the middle class held most of the wealth," due mostly to speculation in the stock market. </span>
I would say B first written code of law and C.<span>ancestor worship</span>
Cultural decay is when a culture no longer holds any value to the youth of the next generation and things are put aside for more interesting trends
Cultural decline is when a culture doesn't develop and leaves the next generation without anything to expand upon or grow from
