Which one of the following facts is protected from disclosure in a court of law?

A, a client, says to B, an attorney "I wish to obtain possession of property by the use of a forged deed on which I request you to sue"

A, being charged with embezzlement retains B, an attorney to defend him. In the course of the proceedings, B observes that an entry has been made in A's account book charging A with the sum said to have been embezzled which entry was not in the book at the commencement of his employment

A, a client says to his attorney B, "I want to murder my enemy C. Please advise me how I may be able to murder C"