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: Medicine
Pemberton’s sign is elicited 
Select and explain. 
A. Swallowing, B. Raising of arms, C. Extrusion of tongue, D. Extension of neck
B: Raising of arms
Answer: B: Raising of arms 
Explanation: It is used for or large retrosternal goitres.