The correct answer is C) General arrangement. The general arrangement plan is used to outline the vessel's firefighting arrangement within the fire control plan. This plan provides a comprehensive layout of the vessel, including the location of firefighting equipment, emergency exits, and other critical safety features. The general arrangement plan is required by the US Coast Guard to ensure that the vessel's firefighting capabilities are clearly documented and accessible to the crew in the event of an emergency. The other answer choices are not correct because: A) Inboard profile does not specifically address firefighting arrangements, B) Subdivision and stability plan focuses on the vessel's stability and buoyancy, and D) Partial plan is not a standard document required for the fire control plan.