This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Psychiatry
Anaesthetic agent used in ECT is: 
Select and explain. 
A. Ketamine, B. Thiopentone, C. Propofol, D. Methohexital
D: Methohexital
Answer: D: Methohexital 
Explanation: Methohexital is most commonly used as an anesthetic agent because of its shoer duration of action and lower association with postictal arrhythmias.