Question

a major feature of the reconstruction period was that
new legislation and constitutional amendments attempted to provide equal rights and opportunities for blacks
the south rapidly developed into the nation’s major industrial center
a spirit of cooperation existed between the executive and legislative branches
new state governments in the south concentrated on ending corruption and enforcing reconstruction plans

Explanation:

The Reconstruction era (1865-1877) was defined by efforts to secure rights for formerly enslaved Black Americans, including the 13th, 14th, and 15th Constitutional Amendments, plus civil rights laws. The South did not become a major industrial center quickly then; there was significant tension between executive and legislative branches over Reconstruction policies; and Southern state governments during this period were often marked by conflict, not focused on ending corruption to enforce plans.

Answer:

new legislation and constitutional amendments attempted to provide equal rights and opportunities for blacks