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 anaesthetic agent increases intracranial tension among the following 
Select and explain. 
A. Thiopentone, B. Propofol, C. Lignocaine, D. Sevoflurane
D: Sevoflurane
Answer: D: Sevoflurane 
Explanation: All inhalational anaesthetics directly act on cerebral blood vessels→vasodilatation→increase cerebral blood flow→ increase intracranial tension