Which statement about immersion suits is TRUE?

A
Some models will automatically turn an unconscious person face-up in the water.
B
The immersion suit seals in body heat and provides protection against hypothermia for weeks.
C
The suit will still be serviceable after a brief (2-6minutes) exposure to flame and burning.
D
The wearer of the suit is not restricted in body movement and the suit may be donned well in advance of abandoning ship.
E