Under the right circumstances, what resource could be used in the production of gasoline?

When John's income was low, he could not afford to dine out and would respond to a pay raise by purchasing more frozen dinners. Now that his income is high, a pay raise causes him to dine out more often and buy fewer frozen dinners

Which graph in the above figure best represents John's Engel curve for frozen dinners? A) Graph A B) Graph B C) Graph C D) Graph D

Assume the United States and Australia have the same amount of resources. In a given time period, the United States can produce 2 tons of beef or 200,000 cars. Australia can produce 1 ton of beef or 100,000 cars. This means that

A. Australia has an absolute advantage in both beef and cars. B. The United States has a comparative advantage in beef. C. The United States has an absolute advantage in both beef and cars. D. Australia has a comparative advantage in cars.