A vessel the passage of which is not to be impeded _________to comply with this Rule when the two vessels are approaching one another so as to involve risk of collision.(1.0)
A vessel the passage of which is not to be impeded _________to comply with this Rule when the two vessels are approaching one another so as to involve risk of collision.(1.0)
A.remains fully obliged
B.has no obligation
C.is not necessarily
D.is exempted
