Which of the following statements about regulatory and legal issues is most correct? a. States require licensure of certain healthcare providers to limit the number of providers. b. The goal of certificate of need (CON) regulation is to ensure that there are a sufficient number of clinical workers at each hospital and nursing home. c. Clinicians who are employees of hospitals do not require personal licenses, as they can practice under the umbrella of the hospital's license. d. For most providers, the primary legal concern is professional liability. e. Healthcare managers must grapple with several legal issues, but there are virtually no ethical issues that arise.