Consider the transportation model $($i$.$e$.,$ only one problem$)$ indicated as $($ii$)$ in Table $5\mathrm{.}26($on the next page$).$

$($a$)$ Use the north$-$west method to find an SBFS $($Starting Basic Feasible Solution$).$ Find the optimal solution by using this SBFS $($i$.$e$.,$ apply the multipliers method$).$ Clearly describe the optimal strategy implied by your optimal solution.