Final answer:
Medical ethics is the required topic for accredited medical assisting programs, which is essential for understanding the moral principles in medical practice.
Step-by-step explanation:
The topic required for accredited medical assisting programs among the options provided is C) Medical ethics. Accredited programs are designed to provide future medical assistants with the knowledge and skills necessary to perform their duties effectively. Medical ethics is a fundamental part of their education because it deals with the moral principles that govern medical practice and the care of patients. In contrast, advanced calculus, art history, and celestial navigation are not commonly part of medical assistant training curriculum.