Answer:D. forming
Step-by-step explanation:
Forming is an initial stage in which the team comes together as different strangers who want to accomplish one goal. The stages involving the team and it development are crucial to understand so that the team can succeed. At the forming stage team members doesn't yet know each other or understand so they are still very enthusiastic, optimistic and polite. They may still be some nervous members since they may still not fully grasp what the team is going to be working on. Others may be joyful looking forward to take on the task.
A team leader has to play a central role at this point to enlighten them on their roles and responsibilities.
It may take long as people get to know each other and familiarise themselves with the task.