You are the licensed operator of a 100 GT towing vessel making coastwise runs. Whenever a crew member is discharged from your vessel you must __________.

A
issue a Certificate of Discharge and make an entry in his Continuous Discharge Book
B
issue a Certificate of Discharge or make an entry in his Continuous Discharge Book
C
retain the crew member's Continuous Discharge Book onboard
D
retain the crew member's Certificate of Discharge onboard
E