Anders, a Danish Tourist, Is Visiting London for the Weekend

Anders, a Danish tourist, is visiting London for the weekend. Anders bears a striking resemblance to David Beckham. Although no one seems to realize it in Denmark, in London, he is often mistaken for the star footballer. In which of the following situations can the contract be voided and can B recover the goods from D?

A) Anders sees a pair of trainers he wants to buy. At the till, the store manager, Bob, says: 'For you, Mr Beckham, it's half price'. Later that weekend, Anders sells the shoes to David who works at his hotel.
B) Anders picks out a DVD in a shop next to his hotel. At the till he realizes he has left his wallet in his room. Anders asks the store attendant, Barry, whether the bill could be sent to his hotel room, saying 'Just ask for David Beckham'. Barry agrees and sends the bill to the reception. Before leaving, Anders forgets to pay the bill. He gives the DVD to Diana, the receptionist, in return for her half empty pack of cigarettes.
C) Anders sees a vintage Mini Cooper which is for sale. He calls the owner, Beatrice, an elderly widow, and they agree to meet. Since Anders' bank is overseas and cannot get the money immediately, he asks Beatrice if he can buy the car on credit. To reassure her, Anders says: 'You can trust me, I'm David Beckham'. Beatrice has never heard of David Beckham and inquires at her local police station. The officer on duty, taking Beatrice for an inquisitive old lady, replies: 'Mr Beckham's very rich, he plays football abroad'. Beatrice agrees to let Anders have the car. When Anders realizes how expensive it is to ship the car to Denmark, he sells it to Donald without ever paying Beatrice.
D) None of the options given is correct.