Consider the following statements: 1. A linear problem with three variables and two constraints can be solved by graphical method 2. For solutions of a linear programming problem with mixed constraints, Big-M-method can be employed 3. In the solutions process of a linear programming problem using Big-M-method which an artificial variable leaves the basis, the column of the artificial-variable can be removed from all subsequent tables. Which of these statements are correct?

Consider the following statements: 1. A linear

1.	Consider the following statements: 1. A linear problem with three variables and two constraints can be solved by graphical method 2. For solutions of a linear programming problem with mixed constraints, Big-M-method can be employed 3. In the solutions process of a linear programming problem using Big-M-method which an artificial variable leaves the basis, the column of the artificial-variable can be removed from all subsequent tables. Which of these statements are correct?
A.	1, 2 and 3
B.	1 and 2
C.	1 and 3
D.	2 and 3
Answer» E.

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