The water pockets located on the underside
题型：单项选择题
问题：
The water pockets located on the underside of inflatable liferafts（）.
A.stow rainwater; these 4 spaces do not take up valuable space
B.act as stabilizers by filling with sea water as soon as the raft is inflated and upright
C.hold the freshwater required by regulation to be provided in the raft when packed
D.None of the above