Determine an initial basic feasible solution to the following transportation problem by using (a) NWCM, (b) LCM, and (c) VAM

\begin{tabular}{|c|c|c|c|c|c|c|} \hline \multirow{4}{*}{ Source } & \multicolumn{6}{|c|}{ Destination } \\ \cline { 2 - 7 } & & D1 & D2 & D3 & D4 & Supply \\ \cline { 2 - 7 } & A & 11 & 13 & 17 & 14 & 250 \\ \cline { 2 - 7 } & B & 16 & 18 & 14 & 10 & 300 \\ \cline { 2 - 7 } & C & 21 & 24 & 13 & 10 & 400 \\ \cline { 2 - 7 } & Demand & 200 & 225 & 275 & 250 & 950 \\ \hline \end{tabular}