This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thyroid disorders, Subject name: Pediatrics
A 15 years old girl presented with complaints of puffy eyes, swelling in the neck, weight gain, and fatigue. On investigations thyroid peroxidase antibodies present and TSH levels are also elevated. What of the following is most likely diagnosis? 
Select and explain. 
A. Hashimoto thyroiditis, B. Graves' disease, C. Iodine deficiency, D. Congenital hypothyroidism
A: Hashimoto thyroiditis
Answer: A: Hashimoto thyroiditis 
Explanation: Elevated TSH levels , presence of thyroid peroxidase antibodies and goiter are s/o Hashimoto thyroiditis. Hashimoto thyroiditis: Aka Chronic lymphocytic thyroiditis Autoimmune disease More common in girls C/F: Goiter, and signs of hypothyroidism like weight gain, fatigue, puffy eyes, slow HR, sensitivity to cold etc. Investigations shows: Anti-thyroglobulin antibodies and TPO-Abs. TSH: Elevated