Question 273Navigation General

The correct answer is A) information or regulatory mark. A white diamond daymark with an orange border is a type of information or regulatory mark, which is used to convey specific instructions or information to mariners, such as speed limits, no-wake zones, or other regulatory requirements. These marks are not used for navigation purposes like lateral aids or safe water marks, and they do not have the same significance as special marks. The other answer choices are incorrect because: B) a special mark is used to indicate an area or feature that is not a navigational hazard but may be useful to know about, C) a safe water mark indicates an area of safe passage, and D) a lateral aid is used to mark the edges of a navigable channel.