Which Is an Accurate Description of a Common Law

Which is an accurate description of a common law?

A) A common law would be invoked to deal with a nurse who, without justification, threatens a client with restraints.
B) A common law would be invoked to deal with a nurse who touches a client without the client's consent.
C) A common law would be invoked to deal with a hospital employee who steals drugs, hospital equipment, or both.
D) A common law would be invoked to deal with a nurse's refusal to provide care for a specific client.