A 26-year-old woman presents with a 3-month history of progressive weight loss despite increased appetite, palpitations, heat intolerance, and anxiety. Vital signs show BP 142/88 mmHg, HR 108 bpm, RR 18, temperature 37.8°C, and SpO2 98% on room air. Physical examination reveals a diffuse goiter, warm moist skin, and bilateral exophthalmos. TSH is suppressed at 0.08 mIU/L. Thyroid peroxidase antibodies are negative. Which diagnosis best explains these findings?

1. A)Graves diseaseGABARITO
2. B)Subacute granulomatous thyroiditis
3. C)Toxic adenoma
4. D)Pituitary TSH adenoma
5. E)Hashimoto thyroiditis