Which of the following operations must be entered on the Oil Record Book Part Ⅰ? ()
Ⅰ.Routine discharge at sea of bilge water containing oil from the machinery spaces
Ⅱ.Bunkering of fuel oil
A.Ⅰ only
B.Ⅱ only
C.both Ⅰ and Ⅱ
D.neither Ⅰ nor Ⅱ