Which of the following can allow access to content on a main board?

The option that allows access to content on a main board is subscribing to the specific board. When users subscribe to a board, they essentially receive notifications and updates regarding changes made on that board. This means they can stay updated with the content and collaborate effectively.

Subscribing to a board is a common practice in work management tools and allows for enhanced communication and interaction among team members. By being subscribed, users can engage with the content, provide feedback, and stay informed about any adjustments or new information that is added to the board.

The other options do not specifically provide access to the actual content on the main board in the same direct way that subscribing does. Inviting users allows for access but is limited to those invited. Sharing a public link can grant access externally but may not apply to all users unless the link is disseminated properly. Creating a group is about organizational structure rather than granting access to board content itself.