Which answer choice describes two central ideas of the article. *Article is The stock market crash in 1929: warning signs went unheeded on NEWSELA*

A)The period of economic
growth and prosperity was called the Roaring
20s; investors were putting all of their money and their hopes in the stock
market continuing to rise.

B)A number of actions by experts and investors contributed to the stock
market crash of 1929; most failed to predict how events would lead to the
stock market crash.

C)A panic occurred when the stock market began to crash in October of
1929; it is easy to see now how remaining calm would have helped prevent further disaster.

D)The stock market crash was an economic disaster that happened just
before the Great Depression of the 1930s; many people lost their homes as well as their jobs or businesses.