Which of the following is likely to have the most price inelastic demand?

In one day, Sue can change the oil on 20 cars or change the tires on 20 cars. In one day, Fred can change the oil on 20 cars or change the tires on 10 cars. Sue and Fred can gain from trade if Sue changes the ________ and Fred changes the ________

A) tires; oil B) oil; oil C) oil; tires D) tires; tires

Because policies in the United States were too expansionary from 1965 through 1973, the U.S. suffered

A) demand-pull inflation. B) cost-push inflation, as workers sought higher wages in order to keep up with inflation. C) both demand-pull and cost-push inflation. D) neither demand-pull nor cost-push inflation.