Mary anticipates coming into contact with the blood and body fluids of a patient. to protect herself and others from potential infectious diseases, she must wear and .

answer; /// i believe the correct answer is (analogue);

well when looking at this if you think about it   negativley and positivley   react with each other and when the first layer gets full they add layers it starts with 2 on the first layer and it constantly goes on until the official number is there