This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anesthesia, Subject name: Pharmacology
Which of the following induction agent produce cardiac stability? 
Select and explain. 
A. Ketamine, B. Etomidate, C. Propofol, D. Midazolam
B: Etomidate
Answer: B: Etomidate 
Explanation: Etomidate produces less cardiovascular and respiratory depression. Ketamine increases hea rate,cardiac output and BP. Propofol causes vasodilatation and hence decreases peripheral vascular resistance and so fall in BP. Midazolam causes fall in BP. Hence cardiac stability is more by Etomidate. From padmaja 4th edition Page no 194,195,196