Answer:
Defamation of character.
Explanation:
The three Ds of negligence in medical terms/ laws are that of duty, dereliction, damages and direct causation. These are legal terms that can be pressed against anyone for malpractice.
But defamation of character is not a medical negligence that can be pressed charges against anybody. It is a term usually used when someone harms or says something bad about someone's reputation. But it is not considered one of the four Ds of medical negligence.