Concept:Dead freight refers to a charge related to unused cargo space on a chartered ship.Explanation:When a person or company charters a ship, they agree to use a certain amount of its cargo capacity.If they do not use all of that contracted space, they still have to pay for the empty portion.That payment for the unoccupied space is called dead freight.Therefore, dead freight is the cost paid for empty space left in the ship.Answer:Option A is correct: cost paid for an empty space left in the ship.