[单项选择]Housing is recognized as a "socially determinant variable". In France, housing is the main item of expenditure in the family budget (accounting for an average of 29 percent), and many families would be unable to find decent housing without some help from the State. For a long time, the main problem was the housing shortage but in recent years the deterioration of housing conditions has been giving even greater cause for concern.
Despite extensive construction programs, the problem of housing for the most underprivileged population groups has not been solved. According to a recent report, between 2 and 3 million families had serious difficulties meeting their housing costs and were living in precarious and uncomfortable conditions.
Policies designed to address the housing problem have shifted over the past few decades from a macro-economic approach promoting construction to housing subsidies. The reasons for this shift can be traced to a determination to limit public spend
A. is a problem that can be solved socially
B. is a heavy burden for most underprivileged families
C. is a widespread problem in some European countries.
D. changes with social conditions.