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: Physiology
Thyroid peroxidase is required for all of the following steps in thyroid hormones synthesis except: 
Select and explain. 
A. IODIDE UPTAKE, B. OXIDATION OF IODIDE, C. IODINATION OF ACTIVE IODIDE, D. SYNTHESIS OF IODOTHYRONINES
A: IODIDE UPTAKE
Answer: A: IODIDE UPTAKE 
Explanation: the iodide uptake is dependent on "IODIDE PUMP" Ref: guyton and hall textbook of medical physiology 12 edition page number:565,566,567