The correct options are Team member, Administrators, Developer, and Project Lead.

These titles are not provided as built-in roles by default in a team-managed project because team-managed projects normally ship with a concise set of standard roles and they allow teams to define or customize additional role names. Titles such as Developer, Team member, Project Lead, and the plural form Administrators are typically created or assigned at the project level rather than appearing out of the box.

Viewer is usually a standard built-in role that grants read only access, so it is provided by default and is not one of the roles you should select as missing.

Administrator is commonly included as a built-in role in team-managed projects, so the singular form is provided out of the box and therefore it is not correct to mark it as missing.

Member is often the default role for general project participation, so it is normally provided by default and is not a correct choice for this question.

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