Is Martin Correct That They Will Lost the Protection of Limited

Is Martin correct that they will lost the protection of limited liability if Bruno ceases participating in management decisions?

A) Yes,like a limited partnership,there is no limited liability unless Bruno is a limited member.
B) No,an owner does not have to give up his right to participate in management in order for an LLC to obtain limited liability.
C) Yes,if an LLC member who participated in management chooses to give up this right,the LLC could lose protection.
D) Yes,an owner must give up his right to participate in management in order for an LLC to obtain limited liability.
E) Martin would be correct if Bruno seeks dissolution.