State which of the two statements is correct (i) the cells in the transportation table can be classified in to occupied cells and unoccupied cells (ii) optimal solution is a feasible solution (not necessarily basic ) which maximizes the total cost

Operations research, often shortened to the initialism OR, is a discipline that deals with the development and application of analytical methods to improve decision-making. The term management science is occasionally used as a synonym. (Source: Wikipedia)

Examples of operation research models are: a map, activity charts balance sheets, PERT network, break-even equation, economic ordering quantity equation etc.