C.food does not travel through, but provides necessary support to the digestive system
Explanation:
The primary organs of the digestive systems are the ones that food passes through, for example the esophagus, stomach, and small intestine.
The accessory organs support the function of the digestive system but food does not pass through them. Examples are the liver, gallbladder, and pancreas. They either secrete or store substances that play an important part in digestion.
It's best to start CPR because the ambulance wouldnt make it as quick as to where you would already be at the scene. But someone could always call 911 while you do CPR.