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
Nitroglycerin caused all accept: 
Select and explain. 
A. Methemoglobinemia., B. Bradycardia., C. Tachycardia., D. Vasodilation.
B: Bradycardia.
Answer: B: Bradycardia. 
Explanation: Nitrates cause vasodilation, resulting in hypotension which leads to reflex tachycardia.