Final answer:
OBRA requires nursing assistants to complete at least 75 hours of training, which is fundamental for providing proper care in long-term care facilities.
Step-by-step explanation:
OBRA, the Omnibus Budget Reconciliation Act, specifies the minimum training requirements for nursing assistants. The correct answer to how many hours of training OBRA requires for nursing assistants is (C) At least 75 hours. This training is crucial as it ensures that nursing assistants have the essential skills and knowledge necessary to provide appropriate care to residents in long-term care facilities.
In relation to the survey on nurses, it does not provide direct information about OBRA requirements. Since it also contains an incomplete table, we cannot ascertain the years of experience of those nurses without additional data. If the data were complete, it might offer insight into the work experience distribution among nurses at a particular hospital.