Under the Model Rule on Fairness to Opposing Party and Counsel

Under the Model Rule on fairness to opposing party and counsel, a lawyer is NOT prohibited from which of the following?

A) Falsifying evidence, counseling another to give false testimony, and offering an inducement to a witness prohibited by law.
B) Requesting that a person refrain from giving relevant information unless the person is a relative or employee of the client and refraining will not adversely affect the person.
C) Taking the deposition of an opposing party in a civil case and confronting the opposing party with evidence undermining his or her position.
D) Making a frivolous discovery request or failing to make a diligent effort to respond to a proper discovery request.