(b) Oman Steel Company is currently having five jobs to be completed in details of which is given in Table Q4(b). Using the following priority rules determine the order in which the jobs given in Table Q4(b) should be processed using the following rules: [2] c) Least amount of Slack per operation [2] (ii) Johnson's rule (0) Critical ratio [2] Jobs in the order they arrived) Table Q4(b) Remaining processing Days until time (daya) due date Cutting Drilling 4 1 2 9 3 2 5 3 4 7 5 3 6 3 R S T U V 1