Free trade is better than autarky for a small country

If the United States, at the point where it is currently producing, must give up the production of 500 bicycles (B) to produce 20 additional tractors (T) with the same resources, the opportunity cost of producing 5 tractors is _______ bicycles.

A) 5 B) 20 C) 100 D) 125

The ultimate goal is ____________ which is a form of growth wherein societal needs, present and future, are met

a. Sustainable development b. Carbon footprint c. Ecological footprint d. Planned land use development