Restitution Occurs Where a Court Orders One Party (The Defendant)to

Restitution occurs where a court orders one party (the defendant) to restore or return money or other benefits to another party (the plaintiff) .Which of the following requirements must be present before restitution can be ordered?

A) The defendant received money or other benefits from the plaintiff.
B) It would be unjust to allow the defendant to retain the benefit.
C) The defendant had the opportunity to prevent the breach of a contract but did not take active steps to achieve it.
D) All of the above.
E) A and B only.