Answer:
d Third parties often introduce new ideas that are eventually adopted.
Step-by-step explanation:
Third parties in the United States are practically referred to the party other than the Republican and Democratic parties. Often, these are parties that breakaway from either of the two. Major examples are Progressives and Populis.
Some of the notable achievements of third parties despite not winning the presidency are:
1. Reduction in the federal budget deficit. This was championed by the Reformed party in 1992.
2. Women suffrage movement and child labor law was championed by Socialist Party in the early 1900s
3. Populists and Socialists parties also advocated for a forty-hour workweek in 1938.
Hence, in this case, the correct answer is option D. "Third parties often introduce new ideas that are eventually adopted."