What are the key factors that should be considered in setting future payout policy( pay stock dividends or share buyback)?

\begin{tabular}{|l|l|l|l|l|} \hline & A & B & C & D \\ \hline Cash & 1.61b & 15.25b & 12.81b & 6.93b \\ \hline Gross Profit & 3.37b & 49.51b & 31.34b & 15.49b \\ \hline Net revenue & 5.58b & 57.26b & 63.49b & 22.28b \\ \hline Gross profit margin & 60.40% & 86.47% & 49.36% & 69.52% \\ \hline Profit margin & 11.07% & 24.85% & 29.39% & 42.65% \\ \hline EBIT & 773M & 32.94b & 29.43b & 15.09b \\ \hline Operating profit margin & 13.85% & 57.53% & 46.35% & 67.73% \\ \hline Net Income & 195M & 11.3b & 21.09b & 10.29b \\ \hline Net profit margin & 3.49% & 19.73 & 33.22% & 46.18% \\ \hline ROE & 10.63% & 33.16% & 32.83% & 58.39% \\ \hline Growth rate & 8.20% & 1.83% & 8.52% & 4.85% \\ \hline EPS & 0.31 & 2.02 & 7.50 & 1.25 \\ \hline Dividends Paid & 115m & 7.9b & 10.95b & \\ \hline \end{tabular} \begin{tabular}{|l|l|l|l|l|} \hline & A & B & C & D \\ \hline Dividend Payout Ratio & 22.05% & 96.49% & 74.05% & 91.7% \\ \hline Dividend amount & $0.2 & $1.56 & $6.77 & $2.17 \\ \hline Dividend Yield & 0.59% & 4.16% & 7.32% & 12.33% \\ \hline Franking Credit & 100% & 100% & 100% & 100% \\ \hline Dividend Payment Frequency & 2 times in a year & 2 times in a year & 2 times in a year & 2 times in a year \\ \hline Average Dividend Yield in last 5 years & 3.17%. & 5.61%. & 5.91% & 9.29% \\ \hline \end{tabular}