This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Autacoids, Subject name: Pharmacology
High anticholinergic propey is present in the following antihistaminic agent 
Select and explain. 
A. Astemizole, B. Diphenhydramine, C. Terfenadine, D. Fexofenadine
B: Diphenhydramine
Answer: B: Diphenhydramine 
Explanation: None