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: Anaesthesia
Following drugs are implicated in triggering malignant hyperthermia except 
Select and explain. 
A. Lignocaine, B. Succinylcholine, C. Propofol, D. Halothane
C: Propofol
Answer: C: Propofol 
Explanation: Malignant hyperthermia is caused by 

Succinylcholine
Halogenated inhalational anaesthetic agents
Lignocaine