When towing, a tow hook is used to __________.

Correct Answer: Option C — provide quick release of the hawser

A tow hook, or quick-release hook, is a critical safety device designed to allow the immediate release of the towing hawser under load. This is essential for preventing capsizing if the tug is tripped or if an emergency situation arises where the tow must be jettisoned to save the towing vessel.