A obtained a loan from B. To secure the payment of the obligation, A delivered the warehouse quedans to B and authorized him to sell the sugar in case of default. The warehouse and the sugar were burned. Who bears the loss?

• A. B bears the loss because he became the owner of the sugar when the quedans were delivered to him;
• B. B because of the principle of res perit domino;
• C. By reason of the principle of res perit domino A bears the risk of loss;
• D. B because of the constructive delivery of the sugar.