This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
The antibodies that are seen in Grave&;s disease are- 
Select and explain. 
A. ANA, B. TSH receptor antibodies (TRAb), C. Thyroid peroxidase antibodies, D. Anti-T3 antibodies
B: TSH receptor antibodies (TRAb)
Answer: B: TSH receptor antibodies (TRAb) 
Explanation: ref: Ganong&;s review of medical physiology; 24th edition; page no;347 Grave&;s disease an autoimmune disorder which leads to an overactive and enlarged thyroid gland.