When would a System Administrator use the "Restricted Access" feature?

The "Restricted Access" feature is designed specifically to grant or limit access to particular sheets based on the needs of certain users. By using this feature, a System Administrator can carefully control who can view or edit specific sheets, ensuring that sensitive or proprietary information is only accessible to those who require it for their work.

For example, in a situation where a project sheet contains private data pertinent only to a specific team, a System Administrator can restrict access so that only the members of that team can view or make changes to the sheet. This ensures data privacy and compliance with company policies related to information sharing.

The other options do not align with the purpose of the "Restricted Access" feature. The feature is not meant to enhance visibility for all users, create user accounts, or completely lock the system. Its primary function is to manage and restrict access to ensure appropriate data security and control.