In China Prior to 1990,most Residential Buildings Were in Dilapidation

In China prior to 1990,most residential buildings were in dilapidation because:

A) people were not aware of the maintenance and beautification techniques.
B) the government did not encourage wastage of resources for such purposes.
C) no one had a property right to a home.
D) all the properties were ancestral.
E) the people had private property rights so they did not have an incentive to repair the houses.