4081737] A local municipality used to be highly diversified with high levels of wealth and income inequality. Recently it has experienced falling local tax levels despite enjoying reasonably stable population levels and increasing levels of wealth and income equality. Which of the following factors could have given rise to this trend?
选项：

A: Changing demographics resulting in an expansion of the working proportion of the population.
B: Improvements in the general quality and levels of local education.
C: High and growing crime rates that have driven away businesses and wealthier residents.