An eight-year-old girl went to the grocery store with her mother. The girl pushed the grocery cart while her mother put items into it. The girl's mother remained near her at all times. The plaintiff, another customer in the store, noticed the girl pushing the cart in a manner that caused the plaintiff no concern. A short time later, the cart the girl was pushing struck the plaintiff in the knee, inflicting serious injury. If the plaintiff brings an action, based on negligence, against the girl, which of the following will be her best argument in defense? A. Yes, if the girl was negligent.
B. Yes, because the girl's mother is responsible for any harm caused by the girl.
C. Yes, because the girl's mother assumed the risk of her child's actions.
D. Yes, if the girl's mother did not adequately supervise the girl's actions.