One of the beliefs of the Populist party was D. THE NEED FOR COINAGE OF SILVER MONEY.
Populist Party were formed by farmers who were greatly affected by the introduction of the Industrial Revolution.
Farmers sold their crops to middlemen at a price which they believe are not sufficient to augment their daily expenses.
Populist Party wanted the some of following government actions: 1) free coinage of silver 2) graduated income taxes 3) abolition of national banks 4) non-ownership of lands by foreigners 5) plenty of paper money and many more.
Back in the 1800s nobody cared at all until around the 1940s where people noticed there were too many people coming in 2000s immigration is illegal unless with paperwork