For Infinitely Repeated Games in Which the Players Follow a Tit-For-Tat

For infinitely repeated games in which the players follow a tit-for-tat strategy, which one of the following outcomes is NOT possible?

A) The players cooperate with one another until someone decides to not cooperate, and then the other players will not cooperate for some period of time.
B) There can be dominant strategies.
C) If the information about another player's action is limited, then some cooperative actions may be incorrectly interpreted as "not cooperate."
D) All of the above are possible outcomes.