The correct stepwise procedure for finding out the optimal solution as per graphical method of LPP would be: A. Formulate the problem mathematically as on LPP. B. Find the coordinates of all the corner points of the feasible region. C. Select the corner point that optimize the value of the objective function. D. Plot a graph representing all constraints of the problem and determine the feasible region. E. Find the value of objective function at each of the corner point. Choose the correct answer from the options given below: