Concept:Jettison refers to the deliberate throwing of goods overboard to lighten a ship during an emergency.Explanation:When a ship is in danger of sinking, the crew may deliberately throw cargo overboard.This is done to reduce the ship's weight and keep it afloat.Such an act is legally and commercially known as jettison.It is different from accidental loss, abandonment, or general average.Therefore, the correct term for throwing goods overboard to prevent sinking is jettison.Answer:C. jettison