In the figure given below AB is the production-possibility curve of Canada. In the absence of trade, the price ratio is 1 bushel of wheat/bale of cotton as shown by the line PQ. The international price ratio is 0.25 bushels of wheat/bale of cotton as shown by the line RS. I 1 and I 2 are the pre-trade and the post trade community indifference curves of Canada respectively. In the absence of international trade, 1 bushel of wheat will exchange for _____ bale(s) of cotton in Canada. After Canada engages in international trade, 1 bushel of wheat will exchange for _____ bale (s) of cotton.