A vessel navigate in areas near the termination of traffic separation schemes shall do（）with particular caution.

A vessel not using a traffic separation scheme shall avoid it by as wide a（）as is practicable.

A.margin
B.legend
C.legion
D.maiden

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A vessel restricted in her ability to maneuver when engaged in an operation for the maintenance of safety of navigation in a traffic separation scheme is（）complying with this rule to the extent necessary to carry out the operation.

A.obliged
B.to be
C.exempted from
D.necessarily

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