Well the "roaring twentys" allowed women to work and that caused for them to meet new men and deciding they filed for devorces and teen pregnancy went up but the deppresion everyone was broke so no one could afford nicer things and there was no work
The US was the most productive country in the world. It produced many things and needed to sell them.
A social contract often relates to the legitimacy of the authority someone has over the individual. The relation between legal and natural rights also is a topic of social contract.
I think D is the answer. I may be incorrect, though.