Helppp please Which of the following is a definition of the Progressive Era?
A. a period in which some got rich while others stayed poor
B. a time of new laws designed to create a more equal society
C. a time of industrialization and urbanization in America
D. all of the above

B. a time of new laws designed to create a more equal society

Explanation:

The Progressive Era (1896–1916) was a period of widespread social activism and political reform across the United States of America that spanned the 1890s to the 1920s. ... Social reformers were primarily middle-class citizens who targeted political machines and their bosses.

a case involving the laws of a single state.

equal area projections

equal-area projection. a projection in which regions on the earth's surface that are of equal area are represented as equal.