The International Management Code for the safety operation of ships and for Pollution Prevention is referred to as（）

A.initiate a ship-to-shore security alert
B.transmit a ship-to-shore security alert
C.initiate an alert identifying the ship, its location
D.raise a security alarm on-board the ship indicating that the ship is under threat

A.take actions by he company’s order
B.take actions by the ship owner’s order
C.exercise his professional judgment
D.exercise his professional judgment but be constrained by the company