Question 80 Deck General

The correct answer is D) Halyard. The halyard is the line used to raise and lower a sail on a boat. It is attached to the top of the sail and runs through a pulley or block at the top of the mast, allowing the sailor to hoist the sail up or lower it down as needed. The other options - forestay, foreguy, and mainsheet - are not used to raise or lower the sail itself, but rather serve other functions such as supporting the mast or controlling the position of the sail.