Karen is a dentist licensed by the Arizona State Board of Dental Examiners. She's been practicing dentistry for six years as an employee at the office of a dental practice owned by a longtime Phoenix-based dentist, Dr. Tooth.Dr. Tooth is ready to retire, and he believes Karen is well positioned to take over his practice and provide his patients with great care. Dr. Tooth offers to sell his practice to Karen.Karen wishes to purchase Dr. Tooth's patient list, but she's weary of assuming many of the debts Dr. Tooth has accumulated over his more than 30 ears in practice. She also envisions rebranding the practice under her own name, so the existing intellectual property of the practice is of no value to her. Finally, she intends to upgrade much of the technical infrastructure used by the practice, so she does not need most of the vendor and supplier contracts to which Dr. Tooth's practice is party.Based on Karen's desires, which transaction structure would du most recommend she utilize in order to acquire Dr.Tooth's practice? Merger, because Karen wants the dental practice to continue following the acquisition, albeit with some modern touches to her liking.Asset purchase, because Karen may dictate the assets she wishes to buy and the liabilities she wishes to assume. Stock purchase, because Karen may dictate the assets she wishes to buy and the liabilities she wishes to assume. Stock purchase, because Karen can allocate more risk to Dr. Tooth in this type of transaction relative to other transaction structures.