Which of the following statements arefalse?

I. If scarcity did not exist, then neither would the Production Possibilities Frontier.

II. All Production Possibilities Frontiers are bowed out from the origin.

III. All Production Possibilities Frontiers are made up of two goods or services.

IV. Opportunity cost can not be illustrated with the Production Possibility Frontier.

a) II and IV

b) I.

c) IV

d)III.

What letter is correct?