Client is being sued for securities fraud. The plaintiff alleges that Client lied to the public about Corporation's financial status to inflate the stock price. In a confidential meeting at Attorney's office, Client tells Attorney about an incriminating memo she sent to other officers of Corporation about Corporation's financial statements, and provides Attorney with a copy. Attorney then receives a request for the production of all memoranda relating to the Corporation's financial statements. Attorney should: a-Produce the memorandum b-Withhold the memorandum on the basis of attorney-client privilege, and put a proper entry on a privilege log notifying plaintiff of the withholding c- Withhold the memorandum on the basis of work product doctrine, and put a proper entry on a privilege log notifying plaintiff of the withholding d- Withhold the memorandum, if it would not be admissible at trial