Please look at the samples of representation of a characteristic function for answering a.

The Prisoner's Dilemma is often extended to n > 2 players and called a Social Dilemma game. The key properties of the prisoner's dilemma that are carried over are: 1] each player chooses cooperate [C] or defect {D}, 2] payoffs are symmetric g the payoff for each move, C or D, depends only on how many total players chose C (which implies how many chose D] 3] D strictly dominates C i.e., for any k, if k other players choose C, D pays more than being the k+1st player to choose C 4] Every player's payoff for \"all C\" is higher than for \"all D\" Consider the following 4player social dilemma game: for 0