In transportation model of O R once an initial solution has been found, the next step is to test that solution for optimality. The methods widely used for testing the solution are:

A. they should have computer expertise B. they will be replaced by traditional auditors in the near future C. two of the above D. currently, there is a very high demand for them, particularly from firms that use personal computers E. None of the above

A. the communication channel B. the computer C. terminals D. All of the above E. None of the above

A. depositing cash when bank is closed B. paying bank customer bills automatically C. storing papers in a bank vault D. depositing payments to bank customers E. None of the above

A. path which takes the longest time to complete the project B. the shortest path C. both of the above D. path which takes the shortest time to complete the project E. None of the above