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For the table below, preform column reduction for column B. Initial Table Worker Cost (5) B D X 8 4 0 2 Y 154 3 276 W 5 74 1 SNE owo >> a. 2 4 3 OD 3 4 ocs 3 Od 574 For the table below, is t at optimality is it optimal, yes or no, hint choose minimum number of lines possible)? Initial Table Worker Cost (5) D 4 4 0 0 04 10 B CO X 3 7 3 O OOO 6 EN 1 O a Optimal (no of lines is 3, no of rows is 4) Od. Not Optimal (no of lines is 2, no of rows is 4) Oc Optimal (no of lines is 4, no of rows is 4) Od 0 5 7 Om Not Optimal (no of lines is 3, no of rows is 4)