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
Which of the following is NOT TRUE regarding PROPOFOL ? 
Select and explain. 
A. It is used in day care anesthesia, B. It is contraindicated in porphyria, C. Commercial preparation contains egg extract, D. It does not cause airway irritation
B: It is contraindicated in porphyria
Answer: B: It is contraindicated in porphyria 
Explanation: Ketamine is safe in porphyria.