Although Progressive Era reformers held different opinions about many issues of the day, they shared a belief in

Answer: capacity of trained professionals to find rational, scientific solution to society's problems.

Explanation: The progressive reformers is the name given to the people who played a huge role in making social and political reformation to the United States, people such Jane Addams, Grace Abbott, Edith Abbott, Woodrow Wilson Theodore Roosevelt and so on. progressive Era which from history took place between 1890s to 1920s. Where reformers came together to fight against unethical business practice by private organizations, resolve problem posed by industrialization and abolish corruption.

The ability of the reformers to deliberate and find rational solutions to societal problems was key to the success of the progressive Era even though they held differing views about different opinions.