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
All are symptoms of opiate withdrawals except: 
Select and explain. 
A. Diarrhea, B. Lacrimation, C. Mydriasis, D. Excessive speech
D: Excessive speech
Answer: D: Excessive speech 
Explanation: None