The answer is C. influenza, chicken pox, and colds because influenza, chicken pox, and colds (called rhinovirus) are all caused by viruses. Food poisoning is not a virus, athlete's foot is a fungal infection, and strep throat is a bacterial infection.
A hoist can be used to move the person to safety if they are unable to mobilise their self
White blood cell, red blood cell, and plasma
Fresh fruit I believe i guess it depends on what all the juice has, but im no expert so I think you should look it up