Which of the following statements is TRUE regarding automatic identification systems (AIS) ?（）

AIS cannot be used to make passing arrangements because the system is not capable of this type of ship-to-ship communications
B. AIS cannot be used to make passing arrangements because the ship-to-ship text messaging feature is for emergency use only
C. AIS can be used to make passing arrangements via ship-to-ship text messaging but a vessel operator is not relieved from the requirement to sound whistle signals or make arrangements via bridge-to-bridge radiotelephone
D. AIS can be used to make passing arrangements via ship-to-ship text massaging thus relieving a vessel operator from making such arrangements via bridge-to-bridge radiotelephone or signaling intent to pass via whistle signal