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: Surgery
Swelling of thyroid gland, that does not move with deglutition is/are: 
Select and explain. 
A. Retrosternal goiter., B. Riedel's goiter., C. Anaplastic carcinoma., D. All of the above.
D: All of the above.
Answer: D: All of the above. 
Explanation: None