Which statement best contrasts a topmark and a lateral mark?

• A. Topmarks identify cardinals or special information and are used with buoy color patterns; lateral marks guide safe channels and indicate sides to pass.
• B. Topmarks indicate channel direction; lateral marks mark depth.
• C. Topmarks indicate water depth.
• D. Topmarks identify safe channels and indicate sides to pass; lateral marks identify cardinals.

Answer: (A)