18. When solving an assignment problem, if there are 5 sources and 5 destinations, which of the following statements is true?

Select one:

(a). There are 10 arcs in network form and 10 occupied cells in table form.(b). There are 25 arcs in network form and 5 occupied cells in table form.(c). There are 10 arcs in network form and 20 occupied cells in table form.(d). There are 25 arcs in network form and 14 occupied cells in table form.(e). There are 25 arcs in network form and 9 occupied cells in table form.