If at any time the officer in charge of the navigational watch is to be relieved when a manoeuvre or other action to avoid any hazard is taking place，______．
A.the relief of that officer shall be made prior to such action has been completed
B.the relief of that officer shall never be made
C.the relief of that officer shall be deferred until such action has been completed
D.the relief of that officer shall be made by the captain