Answer:
A. They formed the Populist party to challenge the gold standard
Step-by-step explanation:
Farmers free themselves from the gold standard by " forming the Populist party to challenge the gold standard."
The issue of the gold standard occurred in the late 19th century. While the United States government intend to back the U.S dollars with the gold standard, the farmers due to their debt situation opposed the move. They then went ahead to form a populist party. The populist party has populist as its doctrine and ideals. The party supports the struggle of the common people.