Which of the following was supported in the populist party platform during the age of industrialization and urbanization?

Direct election of US senators and secret elections.

Explanation:

The populist party was a left-wing agrarian political party came in the late 19th century became famous for its ideas. The Populists were a political party that aimed at improving conditions for the farmers and workers. For the populist party, the direct election of senators was important because they selected by state legislatures. Often it leads to corruption and misuse of power.

a big wall across the mexican border so no drugs, terrorist, or illegal immigrants can come through : )    

the answer is selfishly. hope this !