What is the most likely reason for the changes in tenement population between 1888 and 1890? a) economic downturns caused by corporations b) improving wages and prospects for urbanites c) enhanced urban architectural safety standards d) increasing migration to cities by poor families

The correct answer is D) increasing migration to cities by poor families.

The Gilded Age in America saw a significant increase in migration to cities by all different types of Americans, especially poor families. This is due to the fact that new industries/factories were opening up in cities. These factories relied on a significant amount of labor in order to thrive. In this case, many poor families flocked to the city in hopes of obtaining a job where that would help improve their finanical situation.