In the 2006 Study by Singer Et Al

In the 2006 study by Singer et al. on empathy, participants played a cooperative game with an actor, who either played cooperatively or uncooperatively. The actor then received a painful shock. What was the outcome of this experiment?

A) Activation in the anterior insula and the anterior cingulate cortex was higher in those who played with cooperative partners."
B) Men showed a higher tendency than women to want revenge on uncooperative partners."
C) Participants paired with cooperative players felt greater amounts of empathy than those who were paired with uncooperative players."
D) All of the above"