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
Which is the most common dose related side effect of Salbutamol? 
Select and explain. 
A. Nervousness, B. Palpitations, C. Restlessness, D. Tremors
D: Tremors
Answer: D: Tremors 
Explanation: The most common dose related side effect of salbutamol is tremors. Palpitations, restlessness, nervousness, throat irritation and ankle edema are also seen.