What is the basic concept of GMDSS？A.Search and rescue authorities shore can be alerted to

What is the basic concept of GMDSS？

A.Search and rescue authorities shore can be alerted to a distress situation

B.shipping in the immediate vicinity of a ship in distress will be rapidly alerted

C.Shore-side authorities and vessels can assist in a coordinated SAR operation with minimum delay

D.All of these

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