Question 261Navigation General

The correct answer is A) Black and white diamond. The black and white diamond daymark has no lateral significance, meaning it does not indicate the side of the navigable channel. This daymark is used to mark obstructions, wrecks, or other hazards that are not located on the side of the channel. The other options, such as the green square (B), the square with green top and red bottom (C), and the red triangle (D), do have lateral significance and are used to mark the sides of the navigable channel.