Step 1: Understanding the Concept:
This is a detail question that asks to identify a specific achievement of the reformers mentioned in the passage. Although the passage's main thrust is critical, it likely still acknowledges the reformers' actual accomplishments to provide a balanced account.
Step 2: Detailed Explanation:
While the passage highlights a conflict between classes, it's set against the backdrop of the Progressive Era reform movement, which is historically known for making significant strides in labor reform. We must choose the option that is a historically accurate achievement and one that a passage of this nature would likely mention.
\[\begin{array}{rl} \bullet & \text{(A) This is a specific aspect of the suffrage movement, not typically highlighted as the most striking achievement of labor reformers.} \\ \bullet & \text{(B) and (C) are directly contradicted by the passage's central theme, which is the lack of mobilization and unity across class lines on this issue.} \\ \bullet & \text{(D) While this might have been a long-term goal or side effect, the passage suggests their primary actions (banning child labor) could have immediately worsened the economic conditions of some families.} \\ \bullet & \text{(E) This is the quintessential achievement of Progressive Era labor reformers. They fought for and helped pass legislation that regulated hours, improved safety, and restricted child labor, thereby improving working conditions for women and children overall, even if their methods were flawed or met with resistance. This is a major, undeniable historical accomplishment that the author would likely concede.} \\ \end{array}\]
Step 3: Final Answer:
Despite the passage's critique of their methods, the most significant and historically recognized achievement of these reformers, which would almost certainly be mentioned, was the tangible improvement of working conditions for women and children.
