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
The most common differential diagnosis of hyper- thyrodism in a young female is - 
Select and explain. 
A. Hysteria, B. Essential tremor, C. Anxiety neurosis, D. Parkinsonism
C: Anxiety neurosis
Answer: C: Anxiety neurosis 
Explanation: None