Answer: the boat driver
Explanation: The person who has responsibility for avoiding other boats and hazards when a skier is being towed behind a boat is the operator of the boat or the boat driver. The person operating the boat has to take into consideration not to start the engine if there is someone near the propeller. He has to start the boat when the rope is tight and the skier is ready and there is no traffic ahead, always keeping the skier at a safe distance from the shoreline, docks, other hazards or people.
