Which of the following is true regarding playing prosocial video games?

Which of the following is true regarding playing prosocial video games?
 
  A) The positive effects on prosocial behavior are relatively short-lived.
  B) Players are only able to provide more help if the situation requiring help is similar to a situation in a video game.
  C) Players show long lasting effects such that even several months after playing such a game players are more likely to have helped another person.
  D) Players are more willing to help in virtual environments (online, email) but not in ways that demand physical contact.
  E) Players tend to be desensitized to situations in which others need help and therefore are less likely to help than non-players.