Webster purchased a drill press for S475 from Martinson Hardware, Inc. The press has proved to be defective and Webster wishes to rescind the purchase based upon a breach of implied warranty. Which of the following will preclude Webster's recovery from Martinson?

A-The press sold to Webster was a demonstra- tion model and sold at a substantial dis- count; hence, Webster received no implied warranties.

B- Webster examined the press carefully, but as regards the defects, they were hidden de- fects which a reasonable examination would not have revealed.

C- Martinson informed Webster that they were closing out the model at a loss due to certain deficiencies and that it was sold "with all faults."

D- The fact that it was the negligence of the manufacturer which caused the trouble and that the defect could not have been discovered by Mar.

( well explain all point of question with proper address and type answer).