What entity was established to administer The National Housing Act in Canada?

The correct answer is the Canada Mortgage and Housing Corporation (CMHC). Established in 1946, CMHC was created to administer The National Housing Act and to facilitate housing programs initiated by the government. The primary role of CMHC is to improve the availability and accessibility of housing for Canadians. This includes providing mortgage insurance, bank lending support, and promoting housing research and innovation. CMHC's involvement ensures that housing policies are implemented effectively and that Canadians have access to affordable housing options.

Other entities listed, like the Canada Housing and Finance Corporation and the Canadian Home Builders Association, have their own distinct roles and functions in the housing sector, but they do not directly administer The National Housing Act. The National Housing Authority, while related to housing initiatives, does not exist in the capacity that CMHC fulfills within the framework of the National Housing Act.