Refer to the table shown.BotswanaZimbabweGoldNickelGoldNickel030009060200186012010036301800540Botswana's opportunity cost of producing nickel (in terms of gold) is:

Which of the following statements is true?

A) If the nominal wage rate increases, the opportunity cost of current consumption decreases. B) If the unemployment rate increases, the opportunity cost of current consumption decreases. C) If the real interest rate increases, the opportunity cost of current consumption increases. D) If the real wage rate increases, the opportunity cost of current consumption decreases.

The short-run supply of land at a specific location is: a. best described by an upward-sloping curve. b. best described by a downward-sloping curve. c. perfectly inelastic

d. perfectly elastic.