Define 'health informatics'.

Health informatics is correctly defined as the intersection of information science, computer science, and health care for managing health data. This discipline focuses on the effective use of information technology to collect, store, analyze, and share health information. It encompasses a wide range of practices, using data and technology to improve patient care, streamline healthcare operations, and enhance clinical and administrative processes.

By integrating the principles and techniques of various sciences, health informatics facilitates the organization and dissemination of health information. This is crucial in today's data-driven healthcare environment, where accurate and timely information is essential for decision-making, research, and improving patient outcomes. Through health informatics, professionals can better analyze health trends, manage electronic health records (EHRs), and contribute to public health initiatives.

Other options do not capture the essence of health informatics as comprehensively. The study of medical ethics focuses more on moral considerations in medicine, hospital finances pertains to financial management rather than data, and the analysis of clinical trials is specifically about research methods rather than the broader field of health information management.