With Respect to a Sale of Goods,which One of the Following

With respect to a sale of goods,which one of the following statements is true?

A) Legislation allows a seller to override the requirement that goods supplied be fit and of merchantable quality in consumer transactions.
B) A seller who has been given a cheque that "bounces" (dishonoured for insufficient funds) , in payment for goods that he still possesses, has rights against the goods themselves as well as an action for breach of contract against the buyer.
C) The Sale of Goods Act also applies to the purchase of real estate and of bonds.
D) If the parties do not agree otherwise, the risk of loss stays with the seller until delivery.
E) If the parties do not agree otherwise, the time of payment is 30 days after the time of delivery.