Which one of the following countries is the largest oil consumer of the world ?

A. redistributing income from rich to poor because this is what the members of society would choose to do if they were behind a veil of ignorance
B. redistributing income from rich to poor because due to the diminishing marginal utility of income, taking a pound from the rich reduces their utility by less than the gain in utility generated by giving a pound to the poor
C. allowing each individual to maximize their own utility without interference from the government
redistributing income from rich to poor because this would maximize the well-being of the worst-off person in society