144 GMDSS regulations require that vessels carry two way VHF radio set for survival craft. How many are required and when do the regulations apply? b) c) d)

A. 3 sets, all vessels from August 1993
B. One per lifeboat and one spare from August 1993
C. None at present,3 sets on all ships from August 1993
D. 3 sets, New builds from February 1992, other vessel from feb 1995