Eleven school board members vote on four cost reduction plans involving the district bus...

Eleven school board members vote on four cost reduction plans involving the district bussing service. The board members’ preferences for plans A, B, C, and D are summarized in the following table.

a. Which plan is adopted under the plurality method?

b. Form all pairwise comparisons and determine the winner of each.

c. Consider the results from parts (a) and (b), and identify which criterion has been violated.