Final answer:
The branch of natural science that deals with professional duties toward colleagues and patients or clients in the legal field is ethics. Ethics establishes the necessary standards of conduct for professionals and guides decision-making to align with the well-being of clients and professional expectations. Option B is correct.
Step-by-step explanation:
In the legal field, the branch of natural science that deals with the duties of a professional toward colleagues and patients or clients is ethics. Ethics is a branch of philosophy, but in the context of professional practice, it is crucial for establishing standards of conduct. These ethical standards are essential in guiding professionals in making decisions that align with both the welfare of their clients and the expectations of their profession.
The subject of ethics is studied by those in the medical and legal professions to ensure responsible conduct towards colleagues, patients, and clients. In scientific research and healthcare, practices like obtaining consent before proceeding with treatments or studies are deeply rooted in ethical principles. These principles help to navigate complex situations by providing a moral compass, hence why ethics is intertwined with both law and medicine.