 Another different type of proposal focuses on selection of permissible options from a set of alternatives \(\cS,\) rather than a complete ranking of options. As in  section 3.3,  we can imaginatively think of each possible probability distribution in a set \(\cQ\) as a “committee member”, and posit a rule for choice based on facts about the opinions of the committee. (The first three rules are versions of the rules for sets of utility functions in 3.3, and can be combined to cover sets of probability/utility pairs.)