A nasal cannula is a medical device, used to administer oxygen at low flow to the human beings. It consists of a soft and flexible plastic tube or hose with two outlets or tips that adapt to the nostrils and that is held over the ears. This device is used to deliver oxygen to a patient breathing with minor breathing problems.The high flow nasal cannula is used to deliver oxygen at a high rate. Oxygen is delivered through tiny pins that sit in the nostrils. The high flow rate makes breathing easier. The lungs don't have to strain to get air in and out.
From my perspective it would be c because of you run your hands under water the germs and bacteria aren't necessarily gone but with the gloves the bacteria off your hands, it can't get to the food. i hoped this helped!
