Which document serves as proof that service has been properly completed?

• A. Notice of denial
• B. Proof of service
• C. Certificate of service
• D. Affidavit of service

Answer: (B)

Proof of service is the sworn declaration filed with the court by the person who served the documents. It records who was served, when, where, and how, and confirms that service was properly completed. This document provides the official evidence the court requires to show that service occurred before moving forward. In California practice, an Affidavit of Service serves the same function, but the term most directly describing the evidence of service is Proof of Service. A Notice of denial relates to the outcome of a decision, not to proving that service happened, and a Certificate of Service is not the standard form used to certify service of process in this context.