While Shopping with Her Mother in Arnold's Super Market, Eight-Year-Old

While shopping with her mother in Arnold's Super Market, eight-year-old Janet was allowed to roam around freely.Without her mother's knowledge, Janet opened a jar of jelly and spilled the contents on the floor.Two hours later while intently watching a good-looking butcher, a shopper named Bernadette slipped on the jelly and broke her leg.Bernadette sued the super market.Most likely, Arnold's is

A) liable for negligence.
B) not liable because Janet is the culprit.
C) not liable because the mother should have done something.
D) not liable because neither Jane nor her mother is an employee.