Consider the following statements:
1. A linear programming 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 solution process of a linear programming problem using Big-M method, when an artificial variable leaves the basis, the column of the artificial variable can be removed from all subsequent tables.
Which of theses statements are correct?
Option (A)
1, 2 and 3
Option (B)
1 and 2
1 and 3
2 and 3
Correct Option: