When your tug reduces speed to shorten tow, the __________.

Correct Answer: Option D — All of the above

Reducing speed while towing creates multiple hazards: the tow's momentum may cause it to override the tug, the slackened hawser risks dragging on the bottom, and the loss of tension can lead to the tug becoming 'in irons,' where it loses the ability to steer effectively against the tow.