Residential buildings are treated as A. Light construction B. Heavy construction C. Industrial construction D. Private construction

Light construction
Heavy construction
Industrial construction
Private construction

Residential buildings are treated as light construction.

Light construction is a type of construction that uses relatively lightweight materials and methods. It is typically used for buildings that are not intended to be occupied by large numbers of people, such as single-family homes and small office buildings.

Heavy construction is a type of construction that uses heavier materials and methods. It is typically used for buildings that are intended to be occupied by large numbers of people, such as high-rise buildings and hospitals.

Industrial construction is a type of construction that is used for industrial facilities, such as factories and warehouses. It is typically characterized by the use of heavy materials and methods, as well as the need for specialized equipment and expertise.

Private construction is a type of construction that is not funded by the government. It is typically used for residential and commercial buildings, as well as other types of private projects.

In conclusion, residential buildings are treated as light construction because they are not intended to be occupied by large numbers of people and they do not require the use of heavy materials or methods.