During the late 1800s, the majority of unskilled workers in urban areas lived in

City tenements

Explanation:

With introducing the industrialization, led the huge rural population to shift in the urban areas. Majority of the rural people sold their homes and moved to live in urban areas to find jobs and to start a new life. Life was not easy in cities with low wages and long shifts. The people who came in cities were unskilled with no money to live in comfort. They lived in wooden structures in the urban dwelling with no sanitation and safety.