The Methods for dealing with the deadlock problem isa.Use a protocol to make sure that the system never enters in to the deadlock stateb.Ignore the problem, and pretend that deadlock never occur in the system, the unix operating system uses this solutionc.All of thesed.Allow the system to enter a deadlock state and then recover

The methods for dealing with the deadlock problem include:

a. Using a protocol to ensure that the system never enters into a deadlock state. This method involves designing a strategy that prevents at least one of the four Coffman conditions (mutual exclusion, hold and wait, no preemption, and circular wait) that lead to deadlock.

b. Ignoring the problem and pretending that deadlock never occurs in the system. This method is used by the Unix operating system. It's based on the assumption that deadlocks occur rarely and it's easier to reboot the system after a deadlock than to prevent them.

c. Allowing the system to enter a deadlock state and then recover. This method involves detecting deadlocks when they occur and applying an algorithm to break the deadlock.

d. All of the above are methods for dealing with the deadlock problem. The choice of method depends on the specific requirements and constraints of the system.