Today,prisoners Must Be Given All but Which of the Following

Today,prisoners must be given all but which of the following due process rights?

A) Advance written notice of charges no less than 24 hours before appearing at the hearing
B) Ability to call witnesses and to present documentary evidence in his or her defense
C) Use of counsel substitutes (e.g., a friend or staff member) when the inmate is illiterate or when complex issues require such assistance
D) An impartial prison disciplinary board
E) All of the above must be given.