BOTH INTERNATIONAL & INLAND The tow shown in illustration D024RR below is greater than 200 meters in length and severely restricts the tow vessel's ability to deviate from her course. Which shape(s) would be displayed by day from the vessel(s)?

Correct Answer: Option D — All of the above

Rule 24(c) requires a vessel engaged in towing that severely restricts her ability to deviate from her course to display the shapes prescribed in Rule 27(b). This includes a ball-diamond-ball on the towing vessel and a diamond shape on the tow, indicating the restricted maneuverability of the combined unit.