Banker algo, solve the problems anyone?

 Question 1.  System State:  Processes: P0, P1, P2, P3  Resources: A (3 instances) | B (14 instances) | C (11 instances)    (a) If we try to execute all processes; Is system in safe state with above information?  (b) If a request from process P1 arrives for additional resources of (0,5,2), can the Banker's algorithm grant the request immediately? Show the system state, and other criteria.