Robert is walking down Forbes Avenue when he observes two men physically attacking a young girl. He is not related in any manner to the girl, who he does not know or recognize.As far as he can determine, the two men are attacking her without provocation or justification, and are seriously injuring her. In Roberts pocket is an operable cell phone with which he can place a totally free call to 911 to attempt to help the attacked girl. Robert can make the call in complete safety, and does not fear that the men will discover his actions. Instead of helping the young girl, Robert simply decides to watch the attack.

Which of the following statements is/are true?

A.Robert is probably guilty of the crime of being an accomplice to assault.

B.Robert is probably guilty of failure to assist a person in distress.

C.Robert has probably not committed any crime as he would be under no obligation to assist the young girl.

D.The law takes a "duty model of morality as to the legal issues in this type of situation- and thus there is no liability for failing to help.

E.C and D