1520 available ess allocation claim needs PO 0 01 2 0 0 1 3 P1 1 0 0 01 9 5 0 P2 1 3 5 3 2 35 6 P3 0 0 3 2 0 55 2 P4 0 1 4 0 7 5 6 A) Fill in the needs column B) Is the system in a safe state? C) Show a full or partial sequence D) A request from Process P1 arrives for (0,4,2, 0). Should the request be granted? E) Make the necessary changes and use the chart below to calculate the answer to part D ess allocatiorn claim needs available PO P1 P2 P3 P4 0 7 5 6