Exercise 4 Ruby and Oliver live together on the deserted island of Evl that contains only a corn field , and is surrounded by water that they can catch fish in. Their production possibilities with respect to the production of corn and fish are as presented in Tables 1 and 2 below . Ta ble 1 Ta b le 2 Ruby's Production Possibilities Oliver's Production Possibilities fish corn fish corn BUD U 150 U 200 5 Cl 100 100 100 100 50 200 0 15D [3 300 a] Draw graphs of both Ruby's and Oliver's production possibility curves . b] What are the opportunity costs of producing fish at each output in the table for Ruby.r and for Oliver ? c} What are the opportunity costs of producing corn at each output in the table for Ruby and for Oliver '? They now decide to specialise in onlv one task each and trade with each other . :1] Who will cultivate corn and who will fish ? Explain why. e} Draw the production possibility curve for the island of Eyl