Is the Manager Correct That the Store Did Not Warranty

Is the manager correct that the store did not warranty products?

A) Yes, because unless Clara had a written promise specifically providing for a warranty, the computer was sold without a warranty.
B) Yes, because unless Clara had an oral promise specifically promising a warranty or a written contract specifically providing for a warranty, the computer was sold without a warranty.
C) No, because the computer was sold with a warranty of merchantability.
D) No, because the computer was sold with a warranty of merchantability and also with a warranty of fitness for a particular purpose.
E) No, because the computer was sold with a warranty of merchantability, with a warranty of fitness for a particular purpose, and also with an express warranty.