Omega Corporation has hired two management consultant firms, ManageFix! and EfficiencyRun, to help cut unnecessary costs by streamlining its corporate structure. By following ManageFix! ' s plan, Omega Corp. will save more money than it would by following EfficiencyRun' s plan. Ttherefore, by following ManageFix! ' s plan, Omega Corp. will be doing the most that can be done to cut unnecessary costs due to inefficient corporate structure. Which of the following is an assumption on which the argument depends? ['Omega Corp. has not yet determined with certainty that it wishes to make changes in its corporate structure.', "Unnecessary costs cannot be reduced more by implementing both plans together than by implementing ManageFix! 's alone.", "Omega Corp. can implement ManageFix! 's plan in one of several ways, some of which are more expensive than others.", 'Other than in its corporate structure, Omega Corp. does not waste money in other areas.']