What document demonstrates that service has occurred?

• A. The original complaint.
• B. Proof of service or affidavit.
• C. A letter from the defendant.
• D. A court order.

Answer: (B)

The key idea is that records showing what has happened to the documents are needed for the court to know service occurred. The document that demonstrates service has occurred is the proof of service (also called an affidavit of service). This record is filed with the court and provides specifics such as who was served, when, where, and by what method. It creates an official trail confirming that service happened, which is essential for deadlines and for moving the case forward.

The original complaint starts the case, but it doesn’t prove that the defendant was actually served. A letter from the defendant doesn’t establish formal service or become part of the court record as proof. A court order is a judicial directive, not evidence that service took place.