Which option correctly describes the four classic stages of group development according to Tuckman, including Adjourning as an optional stage?

• A. Forming — orientation and tentative participation; Storming — conflict and testing leadership; Norming — cohesion and adherence to norms; Performing — productive work and goal achievement.
• B. Forming — orientation and tentative participation; Storming — conflict and testing leadership; Norming — cohesion and adherence to norms; Performing — productive work and goal achievement; Adjourning — termination and reflection (optional).
• C. Forming — initiation and acceptance; Storming — disagreement and goal setting; Norming — role clarity; Performing — evaluation.
• D. Forming — exploration and safety; Storming — conflict resolution; Norming — leadership development; Performing — task completion.

Answer: (B)