1 Consider four departments labeled A, B, C, and D. departments B and D are represented by a 1*1 square. departments A and C are represented by a 1*2 rectangular. The following data are given. Answer the following questions using CRAFT with two- .way exchanges only List all the department pairs that .1 .CRAFT would consider exchanging Compute the actual cost of exchanging .2 departments C and B. What is your O ( comments. ( ) (5 ) Initial layout AB D Flow-Between Matrix B D 7 0 3 B 5 0 5 Unit Cost Matrix A B A 2 B 2 0 1 D 3 0 0 2 D 1 0 0 0