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G. improvement in the value of the optimal solution. O d. change in the value of the optimal solution. QUESTION 26 A seamstress has 30 yards of cloth and 20 yards of thread to make small, medium, or large shirts. Each small shirt takes 0.75 yards of cloth and 0.5 yards of thread; each medium shirt takes 1 yard of cloth and 0.7 yards of thread, and each large shirt takes 1.2 yards of cloth and 0.9 yards of thread. Each type of shirt takes 30 minutes to sew and the seamstress has 16 hours of time she can devote to sewing. A large shirt sells for $15, a medium for $12, and a small for $10. Using S for small, M for medium, L for large, C for cloth, T for thread, and H for hours, what is an appropriate objective function for this problem? O a. Min Cost = 30C+20T+16H O b. Max Profit=15L+12M+10S O c. Max Profit = C+T+H O d. Min Cost=0.75S+1M+1.2L QUESTION 27