Which access level should Jorge set for this workspace?

Jorge is starting an Employee Resource Group for volunteers at his company to collaborate from across different business units. This group requires a workspace that is visible to all members of his organization, so that they can volunteer to join and follow the group’s progress. However, the group’s leaders want the rights to approve any members before they join.

Which access level should Jorge set for this workspace?
A . Open
B . Invite Only
C . By Request
D . Hidden

Answer: B

Explanation:

Reference: https://slack.com/intl/en-pk/help/articles/201330256-Invite-new-members-to-your-workspace