Exhibit 15-1 the Following Payoff Matrix Shows the Possible Sentences

Exhibit 15-1 The following payoff matrix shows the possible sentences that two suspects,who are arrested on suspicion of car theft,could receive.The suspects are interrogated separately and are unable to communicate with one another.
Refer to Exhibit 15-1.The game is called the "Prisoners' Dilemma" because:

A) the Nash equilibrium of the game results in the lowest combined prison term.
B) the prisoners, by acting in their own private interests, end up worse off than otherwise could be the case.
C) when cooperation is not allowed, the prisoners each choose not to confess.
D) the prisoners always act in solidarity, when each could individually be better off.