The correct answers are Can be shared across projects and Must be managed by a Jira administrator.

The statement Can be shared across projects is not achievable because Components in Jira are defined at the project level and there is no built in way to share a single Component definition across multiple projects.

The statement Must be managed by a Jira administrator cannot be achieved because Components are typically created and maintained by a project administrator through the project settings and they do not require site or system administrator privileges to manage.

Automatic issue assignment when a component is chosen is incorrect because Jira supports assigning a default assignee for a Component and you can also use automation rules to route issues based on the Component field.

Allow selecting multiple components on an issue is incorrect because issues can include one or more Components and the interface allows selecting multiple entries for that field.

Can be managed by a project administrator is incorrect because this is actually true in Jira and project administrators can add and edit Components from their project settings.

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