Consider the following SWF. Fix a preference ordering over alternatives detoned0. For each pair of alternativesAandB, alternativeAis considered to be socially preferred to alternativeBif and only ifA0B. In other words,=0, regardless of the individual's preferences.

(a)Does it satisfy universal domain?(b)Does it satisfy unanimity?

(c)Does it satisfy independence of irrelevant alternatives?(d)Is it a dictatorship?