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
The doctrine of res ipsa loquitur means 
Select and explain. 
A. Common knowledge, B. Medical maloccurance, C. Fact speaks for itself, D. Oral evidence
C: Fact speaks for itself
Answer: C: Fact speaks for itself 
Explanation: The doctrine of res ipsa loquitur  
It means “the thing or fact speaks for itself”.
In a case of professional negligence of a physician, the patient need not prove negligence.
It is applied when the following conditions are fulfilled :

That is the absence of negligence the injury would not have occurred ordinarily.
That the doctor had exclusive control over the injury-producing instrument or treatment.
That the patient was not guilty of contributory negligence.