Final answer:
The statement is generally false; Shared leadership roles in small groups are usually informal, while formal leadership appears in structured secondary groups. Therefore correct answer is option B.
Step-by-step explanation:
No, shared leadership roles are not formally assigned by the team. In formal group leadership, leadership roles are usually more overt and often have clearly outlined roles and responsibilities. However, shared leadership involves a collaborative and distributed leadership approach where leadership roles are not formally assigned by the team, but emerge organically based on individual strengths and expertise within the team. This allows for a more flexible and dynamic leadership structure where different team members can take on leadership responsibilities based on the needs of the group.