What is the main risk if every user is given full control over a shared folder?

Correct answer: A user may modify or delete files

The governing concept is permission management and least privilege. Full control commonly allows users to read, create, modify, rename, and delete shared files. A careless action, malicious change, or incorrect overwrite can therefore damage data or interrupt other users’ work. Option B is correct. Read-only access would not permit such changes, and storage capacity or monitor operation does not automatically change merely because permissions are broad.