some study groups. Each group must choose a representative to talk to the staff, but there is a staff rule that a student can only represent one group. The problem is to find a representative from each group while obeying the staff rule. a) Explain how to model the delegate selection problem as a bipartite matching problem. (This is a{modeling problem); we aren't looking for a description of an algorithm to solve the problem.) b) The staff's records show that each student is a member of at most 4 groups, and all the groups have 4 or more members. Is that enough to guarantee there is a proper delegate selection? Explain.