“Inability to provide for the first watch at the commencement of a voyage and for subsequent relieving watches persons who are sufficiently rested and otherwise fit for duty” is considered to be one of the detainable deficiencies under （）.

A.Absence, substantial deterioration or failure of proper operation of the cargo deck area fire protection on tanker
B.Absence, non-compliance or serious deterioration of lights, shapes or sound signal
C.Absence or failure of proper operation of the radio equipment for distress and safety communication
D.Absence in a watch of a person qualified to operate equipment essential to safe navigation, safety radio communications or the prevention of marine pollution

A.Failure of proper operation of propulsion and other essential machinery, as well as electrical installation
B.Failure of the proper operation of the main and auxiliary steering gear
C.Failure of engineering watch arrangements to confirm to the requirements specified for the ship by Administration
D.Failure of the proper operation of emergency generator, lighting, batteries and switches

A.trim
B.lean
C.draft
D.tonnage