Which of the following holds true of revocation of acceptance by the buyer?

A. A buyer can revoke acceptance of nonconforming goods when the nonconformity substantially impairs the value of the goods.

B. A buyer cannot revoke acceptance of nonconforming goods if the buyer accepted the goods because of assurances by the seller.

C. A buyer can revoke acceptance of nonconforming goods even after accepting goods with the knowledge of the nonconformity.

D. The right to revoke acceptance can be exercised any time after the buyer discovers the nonconformity.