The correct answer is A) sailing plans are submitted prior to departure. AMVER (Automated Mutual-Assistance Vessel Rescue System) is a voluntary global ship reporting system used by search and rescue authorities to assist ships in distress. One of the key AMVER reporting requirements is that participating vessels must submit their sailing plans prior to departure. This includes details such as the vessel's intended route, anticipated speeds, and estimated time of arrival. The other options are incorrect because they do not accurately reflect the AMVER reporting requirements. B) and C) are not AMVER-specific requirements, and D) refers to the final report, which is not the same as the initial sailing plan submission.