In the figure given below, we see an expansion of the production-possibility curve (from PPC 1 to PPC 2 ). The two goods produced are wheat and cloth, which are land-intensive and labor-intensive respectively. The outward shift of the production - possibilit y curve shows : Cloth PPC 2 PPC 1 0 a. biased growth. b. balanced growth. c. a move from a no-trade situation to free trade. d. a fall in production costs of both the goods .