Bo Bought a Widget from Kathy, but He Has Complained

Bo bought a widget from Kathy, but he has complained that it is defective.If the parties' dispute is resolved by in court, the judge may hold Kathy liable

A) on the basis that the widget does not match its description if the defect pertains to the quality of the goods.
B) for selling a widget that was not fit for its intended purpose as long as Bo was ordinarily in the business of buying widgets.
C) for selling unmerchantable goods if the widget that she delivered to Bo was new, but not if it was used.
D) for selling an unmerchantable widget, but only if Bo proved not only the existence of a defect, but also the cause of that defect.
E) if the widget is unmerchantable and if it was sold by sample.