Which of the Following Is True of Electronic Mediation or E-Mediation

Which of the following is true of electronic mediation or e-mediation?

A) The parties and the mediator communicate through e-mail.
B) Private conversations between the mediator and the parties are not possible.
C) A chat room is assigned for conversations between both parties and the mediator.
D) Settlement cannot be reached without paying substantial lawyers' fees and court costs.