At any given point in time, a sailor may sail on one ship, but a ship may have many sailors. A ship must have at least one sailor. From this description, choose the most correct entity-relationship diagram below. (Only maximum cardinalities have been included.) A) Sailor Ship PK SSN PK ShipID ShipName LName FName B) Sailor Ship PK SSN PK LName ShipID ShipName SSN FName FK Sailor C) PK SSN + Sailor-Ship PK/EK SSN PK/EK ShipID PK Ship ShipID ShipName SSN LName FName FK Sailor Ship D) PK SSN PK ShipID ShipName LName FName EK ShipID (A) (B) (C) (D) (A) and (B) are both legitimate ERDs