System Last Modified By indicates which of the following?

• A. The date the document was modified.
• B. The user who last modified the document.
• C. The producer who created the document.
• D. The status of the document.

Answer: (B)

The key idea is that the Last Modified By field records who most recently changed the document. It tracks the user account that saved the latest update, which is useful for auditing who made the last edits, and can reflect automation if a system or service account performed a change.

It’s not about when the document was changed—that would be Last Modified Date. It’s not about who created or produced the document—that would be Created By or Author. It’s not about the document’s current state or workflow status—that would be a separate Status field.