If Prisoners X and Y in the Table Could Develop $\text { Prisoner } Y$

If prisoners X and Y in the table could develop a credible commitment device, then we would expect
                                    $\text { Prisoner } Y$
$\begin{array}{l}\begin{array} { l } \\\text { Prisoner X} & \text { confess}\\\\ & \text { remain silent}\end{array}\begin{array} { l } \hline \text { confess } & \text { remain silent } \\\hline 10 \text { years each } & \begin{array}{l}0 \text { years for } X \\30 \text { years for } Y\end{array} \\\hline \begin{array}{l}0 \text { years for } Y \\30 \text { years for } X\end{array} & \text { 2 years for each } \\\hline\end{array}\end{array}$

A) both prisoners to remain silent.
B) both prisoners to confess.
C) no specific strategy to dominate their decisions.
D) X will confess and Y will remain silent.