Which group setting allows the group owner to restrict the members of a group to a list of project team members?

The correct choice is to require members to be invited, which enables the group owner to manage membership strictly by controlling who can join. This setting is particularly beneficial in project scenarios where confidentiality or specific expertise is needed, as it allows the group owner to create a curated list of project team members.

When a group requires members to be invited, the owner has complete discretion over who is included, ensuring that only those individuals detailed in the project plan or required for specific roles can participate. This approach enhances collaboration by involving only relevant stakeholders, which can lead to more effective project management and better communication among the team.

The other options would not provide the same level of control over group membership. For instance, allowing members to add themselves or accepting membership requests introduces opportunities for individuals outside of the designated team to join, which may not align with project requirements. Automatically adding organizational members also lacks specificity and could lead to an inflated group size with unrelated members, diluting the focus and effectiveness of the team.