The College of Science in the Department of Mathematics discussed a master's thesis entitled (Sensitivity Analysis of the Optimum Solution to Perturbations of the Profit of an Item in the Multiple-Choice Knapsack Problem) by postgraduate student Luay Dhamad. The aim of the thesis is to study the sensitivity analysis for the optimum to the Multiple- Choice Knapsack Problem (MCKP), according to the perturbation of the profit of an arbitrary item.