A and B Entered a Variety Store Owned by B

A and B entered a variety store owned by B.Unknown to A,B,or C the chocolate bar which A gave to B contained a piece of metal that had fallen into the chocolate mix when the candy bar was made.When B attempted to eat the chocolate,she damaged one of her teeth.She was obliged to have the tooth repaired by a dentist,and in addition,lost a day's work because of the painful injury to her mouth.Her total loss amounted to $300.00.
A may take legal action against C,since C sold the chocolate bar.C.A purchased two chocolate bars from C,and gave one to