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Which practice should be avoided under Rule 30 — Anchored Vessels and Vessels Aground?
A
Not showing three masthead lights when tow exceeds 200m.
B
Forgetting that NUC and RAM only show sidelights when making way.
C
Assuming small craft never need anchor lights in navigated waters.
D
Assuming "whistle" means a literal whistle — it covers any prescribed horn/siren.