Answer (C) is correct . Sensitivity analysis is a process to determine how sensitive the final result (solution) is to changes in variables. It is often used in capital budgeting decisions to incorporate various levels of risk.
Answer (A) is incorrect because Both the simplex method and iterative analysis are ways of working a linear programming problem by hand.
Answer (B) is incorrect because Regression analysis is a means of finding the relationship between two or more variables.
Answer (D) is incorrect because Matrix analysis is another mathematical tool used to solve a variety of problem types.
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