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Which practice should be avoided under Rule 33 — Equipment for Sound Signals?
A
Expecting a masthead light on a sailing vessel.
B
Not recognizing the cylinder day shape.
C
Small vessels (< 12 m) carrying no means of making any efficient sound signal.
D
Confusing 1 short (manoeuvring) with 1 prolonged (fog / bend) — duration is what tells them apart.