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
Bradycardia during anaesthesia seen ina) Pancuronium b) Vecuronium c) Atracuriumd) Propofole) Succinylcholine 
Select and explain. 
A. ab, B. bc, C. cd, D. de
D: de
Answer: D: de 
Explanation: Bradycardia is caused by → Succinylcholine, propofol, opioids anaesthetics (Morphine, fentanyl and its cogneres).
Tachycardia is caused by → Gallamine, Pancuronium, Rocuronium, Ketamine, Thiopentone, Methohexitone.