Question

The U.S. government pays for _____ such as roads and mail delivery.
Social Security programs
public goods and services
borrowing money

Answer 1

The U.S. government pays for "public goods and services" such as roads and mail delivery, since leaving such services up to the will of private companies would involve a great conflict of interest. 

Answer 2

The correct answer is: "public goods and services".

The US goverment pays for the provision of public goods and services, as an effective manner of conducting redistributive policies and decreasing inequality between individuals in the country.

Alternatively, the funds required for Social Security programs are raised through income taxes paid by employees and companies, and the institutions which offer money borrowings are the banks and not the goverment.