Answer:
See explanation
Explanation:
You already answered the question. However, a brief explanation regarding the progressive era is that, it lasted between the late 1800s and early 1900s.
It birth a change in the American history where lots of ills in key sectors (political, social, etc.) of the economy were corrected.
All information in the box and more (urbanisation, political reforms, etc.) pointed to happenings in the progressive era .
