A solicitor recommends to their client that alternative dispute resolution may assist in setting the case without litigation. The client is particularly Interested in mediation and arbitration. The client asks the solicitor to explain the difference between the two.Which of the following is correct?

A、Mediationisvoluntary,butarbitrationismandatoryasitisacontractualprocess.
B、Amediatorwillbeanexpertinthelawsurroundingthedispute,botanarbitratorisnotrequiredtohavesuchexpertise
C、Mediationtakesplaceinprivatebutarbitrationsessionsareopentothepubliclikecourtcases
D、Inmediationthepartiesarefreetoagreetherulesofevidencebutarbitrationmustfollowthesameevidentiaryrulesasacourt.
E、Themediatorcannotimposeasolutionontheparties,butanarbitratorcananddoes.