Growth in income and the availability of low-interest loans led to what?

[stanciyf]

A. the development of suburbs.
B. great strains on America’s highway system.
C. conflict between lower- and middle-class citizens.
D. reforms of consumer law.

[jamilah38]

I think it is A, the development of suburbs, because low-interest loans lead to people being able to afford a mortgage. More mortgages= more demand for housing.

More demand for housing= more houses and neighbourhoods being built