Which of the following stage may be the last stage of group development for some groups, while for some other it is the second last stage?

Performing stage

Performing: The fourth stage is known as performing. At this point, the group's structure has evolved and is accepted by its members. The group progresses toward achieving its goals, and members actively contribute to the group's efforts. For some groups, this stage marks the final phase of their development. However, for some groups, for example, in the case of an organising committee for a school function, there may be another stage known as adjourning stage. In this stage, once the function is over, the group may be disbanded.