This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Forensic Medicine
All of the following conditions of defence available to a doctor against an allegation of negligence except- 
Select and explain. 
A. Medical maloccurrence, B. No fee for treatment charged, C. Therapeutic misadventure, D. Res Judicata
B: No fee for treatment charged
Answer: B: No fee for treatment charged 
Explanation: Free treatment of patient does not give immunity (defence) to doctor against negligence. 
Medical maloccurrence, therapeutic misadventure, Res Judicata and reasonable error of judgment can be used as defences against negligence.