从“Waiting for PIN”与“Validating PIN”之间的转换需要经过（ABCD）事件 A: PIN Entered B: Validate PIN C: Invalid PIN D: Invalid PIN Prompte

All of the following are true of buyer due diligence except for A: Due diligence is the process of validating assumptions underlying valuation. B: Can be replaced by appropriate representations and warranties in the agreement of purchase and sale. C: Primary objectives are to identify and to confirm sources and destroyers of value D: Consists of operational, financial, and legal reviews. E: Endeavors to identify the “fatal flaw” that could destroy the deal