The linear programming is used for optimization problems which satisfy the following conditions:
1. Objective function expressed as a linear function of variables
2. Resources are unlimited
3. The decision variables are inter–related and non–negative
Which of the above statements is/are correct?
(a) 1, 2 and 3 (b) 2 and 3 only
(c) 1 only (d) 1 and 3 only