Final answer:
Progressivism has evolved since the early 20th century, yet contemporary progressives share foundational ideals with their historical predecessors, advocating for government-led social reforms. Despite the adaptations made to fit modern societal needs, the influence of early progressivism is still discernible in present-day politics.
Step-by-step explanation:
Progressivism in the early 20th century was a response to the societal changes brought by industrialization, and it called for reforms to address the perceived problems of the time. Early progressives aimed to promote efficiency and social justice through government regulation, which they believed could provide a middle ground between total government control and laissez-faire capitalism. Conversely, modern progressives continue to push for reforms in labor, social equality, and the environment, often facing challenges in bridging class divides and navigating a polarized political landscape.
While progressivism has certainly evolved over the last century, current progressive policies reflect the movement's ongoing commitment to using government action to advance social reforms. Many ideas such as labor rights, environmental protections, and direct democracy via initiatives and referenda have their roots in the early Progressive Era, indicating a continued legacy in American political thought.
The development of progressivism from the 20th century to today illustrates how historical movements can adapt to new social and economic landscapes, while retaining core principles. Thus, option 'c. Progressivism has evolved, but some similarities exist' best answers the question, as it acknowledges the evolution of progressive ideals over time while recognizing the enduring principles that connect past and present progressive movements.