Karen Decided to Sell Her Stair Step Exercise Machine,because She

Multiple Choice

Karen decided to sell her stair step exercise machine,because she wasn't using it as much as she thought she would.Her friend Lydia bought it from Karen for $100.If the first day that Lydia used the stair stepper it fell apart,injuring Lydia's ankle:

A) Lydia can sue Karen for breach of the warranty of merchantability,because the stair stepper is not fit for its ordinary purpose.
B) Karen can sue the manufacturer for breach of the warranty of merchantability,because she was the original buyer.
C) Lydia cannot sue Karen for warranting that the stair stepper is reasonably fit for its ordinary purpose,because Karen is not a merchant.
D) Lydia cannot sue Karen,because they are not in privity of contract.