Which of the following is not a function of skin? to protect the body from infection to prevent the body from drying out to protect the body from injury to absorb nutrients from food

Ok, think about it.  Does your skin prevent germs from getting inside you?
Does your skin prevent water from leaving the body too quickly?  Does your skin protect your insides from getting damaged when you fall?  Do you put food on your skin to absorb nutrients, or do you put food in your mouth like a normal person?