The correct options are Group members need the ability to perform bulk operations across many issues, Site administrator will control membership of the group, The same people will be assigned to multiple projects, and Permissions need to be granted at the global level.

Using a group makes sense when Group members need the ability to perform bulk operations across many issues because bulk change and similar mass actions are managed by permissions that are easiest to grant centrally to a group rather than to many individual accounts.

It is appropriate when Site administrator will control membership of the group because groups are typically managed at the site or user directory level and that central control avoids inconsistent membership across projects.

You should choose a group when The same people will be assigned to multiple projects because assigning permissions to a group removes the need to repeat the same assignments in each project and simplifies ongoing administration.

Groups are also the right mechanism when Permissions need to be granted at the global level since Jira uses groups for global permissions and those cannot be granted to project roles alone.

Team needs the Work On Issues permission to log time is incorrect because needing the Work On Issues permission for time logging does not by itself require a group. That permission can be granted to a project role or to individual users when finer grain control is desired.

Project administrator is expected to maintain group membership is incorrect because project administrators normally do not manage global groups. Group membership is usually handled by site admins or an external directory and expecting project admins to maintain groups is not the typical or recommended model.

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