The answer is the third one
hannibal
Speculation is the gamble that the price of a stock will increase based on projections provided by the company or economists. The issue with speculation is often projections are incorrect or inflated and if anything were occur to the economy, the stock will quickly decline creating a crash. The 1920s speculation was especially dangerous as people bought stock on credit in hopes of making a profit and paying back the creditor. When the crash occurred not only did individuals lose money but so did creditors.
The debate during the Gilded Age was between "free-traders" and "protectionists". Generally, people in agriculture prefferred lower tariffs, because it enabled them to more easily export their agricultural products, which there was a surplus of in the US, and provided competition for industrial products, which would keep prices low.
For the opposite reason, people in more industrial areas of the country wanted higher tariffs, or a more protectionist policy, so that the manufacturing sector could continue to develop, and they wouldn't have to compete with foreign manufactured goods.
Read what to cover? And the choices got cut off.