Between B & C. Any advice? Thanks!

1)Engineers at Open Book LLC have been sending emails to others engineers in the company as well as to customers.All of these emails include a notice at the bottom that state that the email contains confidential information.However some of the emails do not contain any confidential information.Others contain valuable trade secret information.One of Open Book's customers inadvertently passes along one of the more sensitive trade secret-content emails to a competitor of Open Book.The trade secret disclosed relates to information that the competitor has been trying to figure out for years, and use of the information significantly improves the quality of the competitor's product.Open Book sues the competitor for misappropriation of trade secret.Open Book probably:

a)loses because it labeled every email as confidential.

b)loses because it intentionally disclosed the email to the customer.

c)loses because trade secret is not protected if the information is obtained in a legitimate manner.

d)wins because the competitor should have known that Open Book would not have voluntarily disclosed this information to it and that it obtained the information by mistake.

e)wins because the steps it took to protect the information were the most that could be done under the circumstances.