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: Pharmacology
Ketamine produces : 
Select and explain. 
A. Emergence delirium, B. Pain on injection, C. Bronchoconstriciton, D. Depression of cardiovascular system
A: Emergence delirium
Answer: A: Emergence delirium 
Explanation: None