Assume that one day's labour in Australia can produce either 18 units of butter or 8 units of raisins, while in New Zealand one day's labour can produce either 4 units of butter or 5 units of raisins. If Australia transfers 1 day of labour from raisins to butter and New Zealand transfers 2 days of labour from butter to raisins, which of the following represents the increase in combined output by those workers?Assume that one day's labour in Australia can produce either 18 units of butter or 8 units of raisins, while in New Zealand one day's labour can produce either 4 units of butter or 5 units of raisins. If Australia transfers 1 day of labour from raisins to butter and New Zealand transfers 2 days of labour from butter to raisins, which of the following represents the increase in combined output by those workers? a. 2 raisins; 10 butters b. 8 raisins; 8 butters c. 10 raisins; 2 butters d. 8 raisins; 4 butters