C. From what I have read they come from the outdoors.
You would look at the nutrition facts on the side of the cereal box's.
There can be lots but some main ones are pesticides and disinfectantas hope this helps :)
B makes the most sense to me so I would go with that
I would say diabetes because when you're diabetic you have an elevated amount of glucose. Which causes the narrowing of blood vessels and stiffening in arteries and a decrease in the function of red blood cells. which would mean that white blood cells don't do their job, and fight infection. so with all of this, blood and oxygen flow to the wound are decreased. So the wound can not receive proper attention from the body because it doesn't have enough nutrients or oxygen to heal.
