The ------- was the first ship to use the SOS signal.
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US Naval Ship
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USSR Naval Ship
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Titanic
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None of the above
C
Correct answer
Explanation
Titanic is the correct answer as the RMS Titanic was the first ship to use the SOS distress signal in 1912 during its sinking. Before SOS, ships used CQD as the distress signal, and Titanic's use of SOS marked the transition to the new international standard.