Which statement is TRUE concerning life preservers (Type I personal flotation devices)?

A
Buoyant vests may be substituted for life jackets.
B
Life preservers are designed to turn an unconscious person's face clear of the water.
C
Life preservers must always be worn with the same side facing outwards to float properly.
D
Lightly stained or faded life jackets will fail in the water and should not be used.
E