Select one or more: O a. A Pareto efficient outcome is where you cannot make anyone better off without someone else ending up worse off. O b. All are happy with their share of income in a Pareto...

Extracted text: Select one or more: O a. A Pareto efficient outcome is where you cannot make anyone better off without someone else ending up worse off. O b. All are happy with their share of income in a Pareto efficient outcome. O C. There is only ever one Pareto efficient outcome. O d. If two people have £100 to split, any split in which all the money is used up is Pareto-Efficient, even if one person gets none.