Which of the following countries has the largest national debt as a percentage of GDP?

Refer to Figure 1-4. Which of the following statements is true?

A) The slope of the tangent at E and the slope of the tangent at F are negative. B) The slope of the tangent at E is positive and the slope of the tangent at F is negative. C) The slope of the tangent at E is negative and the slope of the tangent at F is positive. D) The slope of the tangent at E and the slope of the tangent at F are positive.

The production possibilities curve shows that:

A. some of one good must be given up to get more of another good in an economy that is operating efficiently. B. no output combination is impossible. C. an economy that is operating efficiently can have more of one good without giving up some of another good. D. scarcity can be eliminated.