Which Parental Behavior Presents a Risk for the Infant in the Home

Which parental behavior presents a risk for the infant in the home?

A) The father admits smoking cigarettes in the home but says he never smokes around the baby.
B) The parents have parties once a month in the home and serve alcoholic beverages.
C) The parents allow their other children, ages six and 10, to supervise the infant while the parents are working in another room.
D) The mother is a diabetic and has insulin and syringes in the household.