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Which option best reflects Rule 32 — Definitions (Sound Signals)?
A
Gong's tone must NOT be confusable with the bell's.
B
One short blast means starboard, two means port, three means astern propulsion, and five or more rapid blasts mean doubt or danger.
C
In restricted visibility, power-driven vessels making way sound one prolonged blast every 2 minutes.
D
The term "prolonged blast" means a blast of from four to six seconds' duration.