The minimum amount of lifesaving equipment
题型：单项选择题
问题：
The minimum amount of lifesaving equipment required aboard an 85-foot uninspected towing vessel consists of（）.
A.one approved flotation cushion for each person on board
B.one approved life preserver for each person on board and one life ring
C.one approved inflatable vest for each person on board
D.lifeboat capacity equal to 1 1/2 times the number of persons on board