this is one questions please ansswer completely

10-12. For the three systems described below, given that all of the devices are of the same type, and using the definitions presented in the discussion of the Banker's Algorithm, answer these questions: a. Determine the remaining needs for each job in each system. b. Determine whether each system is safe or unsafe. c. If the system is in a safe state, list the sequence of requests and releases that will make it possible for all processes to run to completion. d. If the system is in an unsafe state, show how it's possible for deadlock to occur. 10. System A has 12 devices; only one is available. Job No. Devices Allocated Maximum Required Remaining Needs 156247326402 11. System B has 14 devices; only two are available. Job No. Devices Allocated Maximum Required Remaining Needs 158239348 12. System C has 12 devices; only two are available. Job No. Devices Allocated Maximum Required Remaining Needs 158246314