With Respect to Unusual Dangers,which of the Following Is a Recent

With respect to unusual dangers,which of the following is a recent modification to the general rule with respect to occupiers' responsibilities to licensees?

A) Liability arises from having actual awareness of them.
B) Liability for known hazards is highest when the visitor is a licensee.
C) Liability for known hazards is highest when the visitor is an invitee.
D) Liability arises from having reason to know about them.