A Group Member Openly Challenges Co-Leaders Simultaneously

Multiple Choice

A group member openly challenges co-leaders simultaneously. The co-leaders should: 

A) Always meet privately to discuss a reaction
B) React with a united front at all costs; the most important aspect of the reaction is consistency and solidarity between leaders
C) Always address the issue before the entire group; it is the group's business
D) Address the issue objectively - at all costs - either privately or in front of the group