I'd appreciate an answer and explanation.

The following table shows the payoff matrix of a game situation. The first number in each cell represents the payoffs to the player playing along the rows (Player A), and the second number are the payoffs to the player playing down the columns (Player B). A greater number is better. Payoff Matrix Player B Study Shirk Study 8,3 9.4 Player A Shirk 5,6 9,3 Is this a Prisoner's Dilemma situation O Sometimes O it depends Yes O No