Which of the following groups has had declining labor force participation over the past 30 years?

The gains from trade include: i. lower prices from competition. ii. greater output from specialization. iii. greater variety of goods and services available

A) i and iii only B) ii and iii only C) i and ii only D) i, ii, and iii E) ii only

Scarcity guarantees that

A) demands will exceed wants. B) wants will exceed demands. C) demands will be equal to wants. D) most demands will be satisfied.