To determine the number of able seamen required on an inspected vessel，you should check the （）.

A.load line certificate
B.Operations Manual
C.Safety of Life at Sea Certificate
D.Certificate of Inspection

A.the most common method
B.too expensive for common use
C.generally safe to sea life
D.authorized only with prior approval of the governmental On-Scene Coordinator

A.by the Radiotelegraphy Authority of a country
B.in accordance with the Government Regulations
C.by Complying with the Provisions of the international Conventions
D.under the Provisions of the SOLAS Convention