If a player were to multiclass monk/barbarian, would the unarmored AC stack?

@mikemearls if a player were to multiclass monk/barbarian, would the unarmored AC stack?

— Brad Lewis (@bhl777) October 15, 2016

No – if an affect specifies a new way to calculate AC (10 + X + Y) or a replacement for armor, pick one. #wotcstaff https://t.co/pfq111fsLB

— (((Mike Mearls))) (@mikemearls) October 15, 2016

@Scotty_Calnan @bhl777same for draconic sorcerer and barbarian multiclass, too, right? yes

— (((Mike Mearls))) (@mikemearls) October 15, 2016