17. Catherine and Jacob have a written contract to buy and sell 100 cases of widgets. However, the phrase "100 cases" is a typo, so after signing the contract they orally agree to modify the contract to 1,000 cases of widgets. If later the parties are in litigation concerning the number of widgets involved in the contract, can evidence of the oral change be introduced into evidence? A. Yes, both signed the original contract B. No, this violates the best evidence rule. C. No, this violates the parol evidence rule. D. Yes, this is an exception to the parol evidence rule