Final answer:
Charges of unethical behavior against a cancer registrar are reviewed by the NCRA Council on Certification, which ensures adherence to the NCRA's code of ethics.
Step-by-step explanation:
The body that reviews charges of unethical behavior against a cancer registrar is the NCRA Council on Certification. The National Cancer Registrars Association (NCRA) has a specific council, known as the Council on Certification, which is responsible for overseeing the ethical standards and certification requirements of cancer registrars. Charges of unethical conduct are reviewed by this council to ensure that cancer registrars adhere to the professional code of ethics set forth by the NCRA.