In sequential decision$-$maloing situations, using the roll$-$back method

a$.$ allows the derision maker going second to predict what the decision maker going first will do$.$

b$.$ results in a Nash equilibrium.

c$.$ both "results in a Nash equilibrium" and "allows the decision maker going second to

pititut what the decision maker going lirst will do$"$

d$.$ both "results in a Nash equilibrum" and "allows predictions about what the decision

maker going second will do to be used by the decision maker going first".

e$.$ allows predictions about what the decision maker going second will do to be used by the decision maker going first