7. (90 points) Consider the following snapshot of a system: Available ABCD 1520 Allocation Max ABCD PO0012 P1 1000 P2 1354 P30 632 P40014 ABCD 0012 1750 23 56 0652 0656 Answer the following questions using the banker's algorithm a) What is the content of the matrix Need? b) Is the system in a safe state? If yes, provide the sequence that satisfies the safety criteria; if no, provide reasons why not c) If a request from process P1 arrives for (0,4,2,0), can the request be granted immediately? If yes, provide the sequence that satisfies the safety criteria; if no, provide reasons why not d) If a request from process PO arrives for (1,0,0,0), can the request be granted immediately? If yes, provide the sequence that satisfies the safety criteria; if no, provide reasons why not e) If a request from process P2 arrives for (1,0,0,1), can the request be granted immediately? If yes, provide the sequence that satisfies the safety criteria; if no, provide reasons why not If a request from process P4 arrives for (0, 5, 0, 0), can the request be granted immediately? If yes, provide the sequence that satisfies the safety criteria; if no, provide reasons why not