A borrower defaults on a loan when he stops making payments on the loan

The U.S. economic data for the last 50 years indicates that

A) there is an inverse relationship between unemployment rate and inflation rate. B) there is a direct relationship between unemployment rate and inflation rate. C) during recessions the unemployment rate was always twice as high as the inflation rate. D) there has been no long-run relationship between unemployment and inflation rates.

A change in an equilibrium price can result from I. A change in demand II. A change in supply

A) I only B) II only C) Both I and II D) Neither I nor II