Bryson Hardware accepted delivery of the 50 door handles it ordered. If it later finds the handles do not conform to the contract specifications and it wants to revoke its acceptance, it may return the goods only if
a. it shows the original acceptance of the goods never occured.
b. it shows that the defects substantially impair their value.
c. it can prove it is commercially impracticable for it to keep the goods.
d. the documents of title are in order