Brett has almond​ orchards, but he is sick of almonds and prefers to eat walnuts instead. The owner of the walnut orchard next door has offered to swap this​ year's crop with him. Assume he produces tons of almonds and his neighbor produces tons of walnuts. If the market price of almonds is per ton and the market price of walnuts is per​ ton: a. Should he make the​ exchange? b. Does it matter whether he prefers almonds or​ walnuts? Why or why​ not?