$5.$ For the two 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$$ for each job in each system. b$)$ Determine whether each of the systems is safe or unsafe. c$)$ If the system is in a safe state, list the sequence of requests and releases that will make it possible for all processes to run to completion. d$)$ If the system is in an unsafe state, state how it$$s possible for deadlock to occur.