Which statement about the flow-restricted, oxygen-powered ventilation device is true?

A) "It can be used to ventilate spontaneously breathing patients whose breathing is too shallow."
B) "It is an effective tool by which children can be ventilated when they are apneic."
C) "It has a safety valve that prevents lung damage from overinflation."
D) "It is very easy to use and has almost no complications associated with its use."

A) "It can be used to ventilate spontaneously breathing patients whose breathing is too shallow."