During a Psychology Experiment,Chad and Wilma Are Asked to Compete

Multiple Choice

During a psychology experiment,Chad and Wilma are asked to compete in the Prisoner's Dilemma game.As shown below,Wilma goes first,and after four rounds,the results are as follows: Wilma: cooperate defect defect cooperate
Chad: defect defect cooperate cooperate
As revealed in the pattern of responses above,Wilma is probably using a _______ strategy.

A) random response
B) passive response
C) adversarial response
D) tit-for-tat
E) dominant response