Which statement best describes the benefit of version control for DDC program files?

• A. It helps track changes and allows rollback.
• B. It prevents any changes from being made.
• C. It automatically fixes coding errors.
• D. It eliminates the need for backups.

Answer: (A)

Version control provides a history of every change to DDC program files and records who made each change and when. This lets you review edits, compare different program versions, and, if a recent update causes issues in the control logic, quickly revert to a known good version. In a live system, that ability to undo changes and understand exactly what was modified is invaluable for testing, collaboration, and troubleshooting, without risking the loss of a working configuration.

The other ideas miss the real advantage: version control doesn’t prevent edits from happening, it doesn’t automatically fix coding errors, and while it protects code history, it doesn’t replace the need for backups.